This small form factor hot pluggable Cisco compatible transceiver, model C015PC01, is fully compatible with original Cisco transceivers and is designed for single mode fiber (SMF). It provides a maximum operating data rate of up to 1.25 Gbps and a long transmission distance of up to 80 km. It has an 18-Wavelength CWDM DFB LD transmitter from 1270 nm to 1610 nm each with 20 nm step.

This optical transceiver consists of two sections: the transmitter uses a multiple quantum well CWDM DFB laser; the receiver section uses an integrated InGaAs detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC. It is compliant with SFP Multi-Source Agreement (MSA) specification and SFF-8472.

This RoHS compliant 1.25 Gbps CWDM SFP optical transceiver belongs to GAO’s family of Cisco Compatible Optical Transceivers. Other similar products in this line are Cisco Compatible 10GBASE-SR X2 Transceiver which consists of an 850 nm wavelength optical transmitter and receiver, XAUI interface, Mux and Demux with clock and data recovery (CDR); and Cisco Compatible 1.25 Gbps CWDM GBIC Optical Transceiver Series compliant with GBIC interface converters specification Rev. 5.5 as well as Gigabit Ethernet standard as specified in IEEE 802.3z.

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The multi-function ADSL/ADSL2+ tester, model A0010006, provides upstream and downstream rate measurements, error counts, modem simulation and PING and Trace testing. It also delivers digital multi-meter (DMM) functionality to test subscriber telephone connectivity and line parameters. It is compliant with RJ-11, RJ-45 and DDM connector for data exchange and is capable of a long transmission distance of up to 6.5 km.

This tester is equipped with a high resolution back lit LCD screen. Test results and line parameter measurements are easily obtained with a push of the “Auto Test” key. It utilizes voice and LED status indicators and histogram analysis. It has built-in Ni-MH rechargeable batteries allowing for 2 hours of continuous operation.

This high performance multi-function ADSL/ADSL2+ tester belongs to GAO’s family of ADSL Testers. Reliable products in this line also include Portable xDSL Tester designed for testing various xDSL lines including ADSL, ADSL2, ADSL2+, READSL, and VDSL2; Portable ADSL2+ Tester which functions as a digital multi-meter (DDM) and is able to conduct tests while the operator browses previous test records; and Multi- function Handheld xDSL Tester which accurately tests the physical, network and application layers at a high speed.

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This Alcatel compatible 1000base-T SFP transceiver, model C012P101, features RoHS compliance and low power dissipation and is equipped with RJ-45 connector for data exchange. It is compliant with SFP Multi-Source Agreement (MSA) specification and complies with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE Std. 802. 3.

This transceiver supports1000 Mbps full duplex data-links with 5-level Pulse Amplitude Modulation (PAM) signals. It boasts a transmission distance of up to 100 m over unshielded twisted pair (UTP) Category 5 Cable and provides standard serial ID information which can be accessed with address of A0h via the 2-wire serial CMOS EEPROM protocol.

This Alcatel compatible 1000Base-T SFP transceiver belongs to GAO’s family of Alcatel Compatible Optical Transceivers. Other reliable products in this line include Alcatel Compatible 1000Base-T GBIC Transceiver which is based on Gigabit Ethernet IEEE 802.3 and 1000BASE-T standards and provides a quick and reliable interface for Gigabit Ethernet applications; and Alcatel Compatible 100Base-FX SFP Transceiver which provides standard AC coupled CML for high speed signal and LVTTL control and monitoring of signals.

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This compact and ultra-thin XDS510 USB plus JTAG emulator, model B0M00004, features easy installation and a dedicated, durable JTAG plug. It fully supports Code Composer Studio version 2.2 to 4.0 and the latest DaVinci™ platforms from Texas Instruments. It is compatible with multiple operating systems including Windows 2000, XP, 2003, Vista (32-bit) and Windows 7 32 bit/64 bit and Windows 8 32bit. Equipped with a high speed anti-jamming cable, this device operates at a high programmable TCK frequency of up to 32 MHz and a data transmission rate of up to 480 Mbps. Additionally, a USB 2.0 and a 14-pin JTAG interface are available for data transfer.

This multi-chip, dual-core XDS510 USB plus JTAG emulator belongs to GAO’s family of TI DSP Emulators & Debuggers. This line also has other featured products which are well suited for different requirements. They are JTAG Scan Path TI DSP Emulator Pod designed for hardware and software debugging and flash programming and XDS510 USB 2.0 Enhanced TI DSP Emulator which is equipped with a standard high-speed USB 2.0 interface and JTAG emulation interface that saves computer resources.

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The digital RF millivoltmeter and frequency counter, model A0230003, possesses many outstanding features including a compact size, light weight, low power consumption, rapid frequency response, small standing wave coefficient, high sensitivity, accuracy, reliability and high price-to-quality ratio. It measures sinusoidal signal voltage over a wide frequency range of 10 kHz to 2000 MHz.

This easy-to-use digital RF millivoltmeter and frequency counter belongs to GAO’s family of Logic Analyzers and Generators. This line has a variety of featured products such as DDS Function Generator featuring convenient data input via dial or numerical keyboard and providing protection against over voltage, over current, short circuit and reverse voltage; DDS Function Generator used in development, testing and repair of electronic equipment; and DDS Function Generator with Arbitrary Waveform Function which provides a sampling rate of 100 Msa/s, a vertical resolution of 8 bit and a waveform length of 1 kpts.

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This handheld Gigabit Ethernet tester, model A0060001, has both single and multiple site traffic generation functions. It is capable of identifying cable faults such as short or open circuits as well as detecting cable length. It conducts termination mode testing and frame length, frame type and used ratio status. It provides test tools including port positioning, packet capture and loopback. It boasts a large memory capacity for storage of settings and results.

This ergonomic and easy-to-carry Ethernet tester combines network testing, data packet capture, traffic generation, cable testing and BER testing into one unit. It is compliant with IEEE802.3, RFC1242 and RFC2544 standards and can be upgraded via the included software. It is able to connect with a computer via an external USB or Ethernet port for data exchange. Additionally, equipped with a 4.3 in LCD color touch screen and smart navigation menus, this tester shows all test results as texts or graphics.

This Gigabit Ethernet tester belongs to GAO’s family of Telecom Tester and Analyzer. This category can be divided into many fields that can fulfill customers’ different requirements. Featured products in this category include Portable ADSL2+ Tester which provides digital multi-meter (DMM) functionality to test subscriber telephone connectivity and line parameters, Multi-function ADSL/ADSL2+ Tester which provides a test solution for ADSL, ADSL2, ADSL2+, and RE-ADSL installation, maintenance and measurement and Handheld E1 Bit Error Rate (BER) Tester which is a compact, multi-functional, handheld E1 line test instrument, specially designed for R&D, production, installation and maintenance of SDH, PDH, PCM, and DATA protocol conversion.

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Toronto, Canada – GAO Tek Inc.

The Ethernet switch, model C0330002, converts 10/100BASE-TX Fast Ethernet twisted-pair signals to 100BASE-FX Fast Ethernet fiber signals. It has the ability to transmit up to 2 kilometers for multi-mode fiber and up to 120 kilometers for long-haul single mode fiber between a LAN switch, file server and another networking device.

The multi-port converter provides port-based VLAN and store-and-forward switching mechanism. They also support IEEE 802.3x full-duplex flow control and back pressure half-duplex flow control. In addition, LED indicator lights allow for full monitoring of the convertor’s operational status making observation and diagnoses easy.

The 7-port fiber Ethernet switches belong to GAO’s family of Fiber Switches. Four other similar products in this line are 4-Port 10/100Base-Tx and 1-Port 100Base-Fx Ethernet Switch ideal for fiber to the home (FTTH) optical fiber solutions; 6-Port 10/100Base-Tx and 2-Port 100Base-Fx fiber Ethernet switch which has six 10/100M UTP ports and two 100M SFP sockets; 2 – 10/100/1000M RJ45 & 2 – 1000M SFP Ports Ethernet Switch which boasts auto negotiation function and 1000M Dual Port Media Converter which utilizes intelligent connection technology to provide auto-negotiation thereby eliminating the need to manually configure or monitor settings.

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This portable oscilloscope, model A0120009, combines the functions of an oscilloscope, a spectrum analyzer, a waveform recorder, a signal generator, a voltmeter and a cymometer into one unit. It has 23 measurement functions and PASS/FALL checking functions. It provides auto, normal and single triggering modes and the triggering level is adjustable. The scope also provides four adjustable vertical modes including CH1, CH2, Dual and ADD. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. This oscilloscope also performs FFT spectrum analysis. Its waveform output can be saved in text, MS Word, Excel or graphic (JPG or BMP) formats under most OS from Windows 98 to Windows Vista. In addition, it is compatible with USB 2.0 and requires no external power.

This USB PC based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. Similar products in this line are 40 MHz USB PC Based Oscilloscope, 60 MHz USB PC Based Oscilloscope and 200 MHz USB PC Based Oscilloscope.This line also includes Digital Storage Oscilloscope which integrates a digital oscilloscope, a logic analyzer, a FFT spectrum analyzer, an electronic counter and a clock Jitter analyzer into one device. This line of oscilloscopes is ideal for the maintenance of electronic equipment and laboratory work in fields such as science, medicine, engineering and telecommunications.

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This portable CATV signal level meter, model A0N00003, features a rugged, handheld design, high-speed measurement and auto-off time setup. It tests CATV signal levels in both channel and frequency modes and measures CATV TILT, C/N and trunk cable voltage effectively and accurately. This device operates over a wide frequency range of 46 to 870 MHz with a resolution bandwidth of 280 kHz ± 50 kHz. It offers a level range from 30 to 120 dBµV with an accuracy of ± 1.5 dBµV. It is powered by a DC 7.2 V rechargeable battery allowing it to operate continuously for more than 5 hours.

This handheld CATV signal level meter belongs to GAO’s family of CATV Meters & Instruments. This line also has other featured products such as Handheld CATV/QAM Analyzer which boasts a CM statistic function, Ping function and bandwidth testing function; High-performance Digital Signal Level Meter which is intended for analog and digital television network construction and maintenance; and High Performance TV Signal Analyzer supporting both SD and HD video formats, CAM (Conditional Access Module) for encrypted channels.

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This modular designed and hot-pluggable media converter, model C0330005, uses physical layer technology to implement media conversion compliant with IEEE802.3z and IEEE802.3ab standards. It supports two types of media network connections: 1000Base-T and 1000Base-SX/LX. This media converter can conduct mutual conversion between 1000Base-T twisted pair electrical signals and 1000Base-SX/LX optical signals.

The media converter extends the transmission distance of a network from 100 m over copper wires to up to 80 km through optical fiber link. It provides transmission distances of up to 550 m on 50/125 μm MMF and 220 m on 62.5/125 μm MMF, while on SMF it offers a transmission distance of up to 80 km. It also allows for full-duplex and half-duplex transmission modes. In addition, its LED indicator lights fully monitor the convertor’s operational status making observation and diagnoses easy.

This 1000 M dual port media converter belongs to GAO’s family of Fiber Switch which contains five similar but featured products that can be suitable for different requirements. This line includes 2-10/100/1000 M RJ45 & 2 – 1000M SFP Ports Ethernet Switch which has two 10/100/1000M UTP ports and two 1000M SFP sockets, 4-Port 10/100Base-Tx and 1-Port 100Base-Fx Ethernet Switch which has four 10/100M UTP ports and one 100M SFP socket and 6-Port 10/100Base-Tx and 1-Port 100Base-Fx Fiber Ethernet Switch which has six 10/100M UTP ports and one 100M SFP socket.

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Toronto, Canada -

This small, handheld visible laser source, model C0280003, uses visible red light to indicate the location of fiber faults from a macro bend point, break, problem coupler or connector or a mechanical splice that is not well aligned. It can distinguish the faults in fiber jumpers, jumper boards, distribution frames and tie-ins.

This laser source features energy-saving design, auto power-off, simple button operation and low voltage warning. It utilizes FC, ST and SC adaptors and is also available for CW and 2 Hz alternative optical output modes. In addition, it provides continuous operation of 8 to 10 hours with a 9 V/160 mAh NI-MH rechargeable battery.

This handheld visible laser source belongs to GAO’s family of Visual Fault Series. Another high performance product in this line is Optical Visual Fault Locator which has a 650 nm visible laser source that transmits continuous light or a 1 Hz adjustable strobe light into a fiber allowing the user to visually detect a fiber fault over distances of up to 9 km.

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Toronto, Canada -

This light weight light source, model C0220003, provides 1 to 4 wavelengths and its output power is adjustable according to specific need. It has an adjustable step size of less than 0.5 dBm and stability of 0.15 dB/30 min at 20 °C. Its modulation includes CW, 270 Hz, 330 Hz, 1 kHz and 2 kHz.

This light source is equipped with a LCD screen and offers AA alkaline battery and AC adapter for power supply allowing for a long operating period of up to 45 hours. Its unique intelligent backlight control greatly reduces power consumption by adjusting the light intensity according to ambient light. In addition, FC and PC fiber ports are available.

This high performance handheld adjustable light source belongs to GAO’s family of Light Sources. This line also has Compact Optical Laser Source which performs efficient tests relying on its utilization of automatic power control (APC) and automatic temperature control (ATC) techniques; Fiber Optic Multimeter used in maintenance in telecommunication, CATV and in fiber optic lab testing; and Handheld Optical Power Multi Meter which conducts absolute and relative power tests, optical loss tests for fiber optic cable and passive optical devices.

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Toronto, Canada -

This rugged and handheld CATV signal analyzer, model A0N00002, features high speed measurement, auto scan testing and auto-off time setup. It measures CATV TILT and trunk cable voltage accurately. It tests DVB-C digital signal characteristics including average peak power, MER, BER, C/N and EVM and also provides constellation diagrams.

This portable device operates in both channel and frequency modes. In scan mode, the signal analyzer store signal levels for each channel. In spectrum mode it provides spectrum display and tests for a certain frequency range. It has a large LCD with back light and is powered by a 7.2 V DC rechargeable battery allowing for continuous operation of more than 4.5 hours.

This high performance CATV signal analyzer belongs to GAO’s family of CATV Meters & Instruments. There are other featured products in this line such as Handheld CATV Signal Level Meter specially designed and manufactured for CATV system installation and testing; Handheld Signal Level Analyzer Featuring CATV Testing which provides channel plan selection, channel amending, channel sorting, channel editing functions and auto-off time setup; and High Performance TV Signal Analyzer featuring DVB-C/S/S2/T signal analysis function and MPEG2/4, H. 264, SD/HD decoding and image monitoring functions.

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Toronto, Canada -

This handheld 2 channel digital oscilloscope, model A0110007, features an auto-scale function, automatic settings function, automatic parameter measurement, multiple wavelength calculation functions as well as advanced triggering options. It has all of the functionality of a digital multimeter (DMM), such as measurements for voltage, current, resistance, capacitance, and diode and continuity check.

This oscilloscope is durably designed for operation even in harsh industrial environments. It has 60 MHz bandwidth and offers up to 250 MS/s real-time sampling rate at a memory depth of 6 k per channel. Triggering modes such as edge trigger (Normal, Single shot, Auto) and video trigger are provided. In addition, it provides up to 6 hours continuous operation on a single charge.

This cost effective and compact handheld digital oscilloscope belongs to GAO’s family of Automotive Testers. This line also includes Portable Digital Scope w/FFT used for electronic circuit debugging, circuit testing, design and manufacture, education and training, automobile maintenance and testing; and Multi-function Logic Analyzer capable of observing a sizable amount of data and data flow direction control information simultaneously and captures narrow pulse interference information. Featured products such as 4-Channel Automotive Tester/Diagnostic Oscilloscope and Handheld Two Channel 20 MHz Digital Oscilloscope are also available.

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Toronto, Canada -

This easy to use telecom line tester, model A0080003, can be used to dial and has caller ID display. It features low voltage warning and auto power-off function for saving energy. It is compatible with FSK and DTMF meeting the GB/T 15279-94 standard.

The tester can perform multi-line as well as twisted pair testing. It has an insulation test range of 0 to 40 MΩ at a maximum distance of 2 km. It is configured with a large high resolution LCD screen to display line voltage and insulation test results and uses a rechargeable 9 V Ni-MH battery.

This compact telecom line tester belongs to GAO’s family of Telecom Line Testers. This line includes two other technically advanced line testers including TDR Cable Fault Locator ideal for localization of breaks, shorts, poor electric insulation and other faults of various telephone cables, RF cables and coaxial cables; and TDR Cable Fault Locator GAO A0080002 which is capable of accurate localization of breaks, shorts, poor electric insulation and other faults of various telephone cables, RF cables and coaxial cables.

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Toronto, Canada -

This PCI data acquisition module, model A0K10008, features a fast processing speed with high precision and is suitable for use in the lab, product quality testing centers and systems for different areas of data acquisition, waveform analysis and processing. It provides internal and external clock function, AD continuum and grouping sampling function and analog input auto-calibration.

This easy to use data acquisition module is based on PCI bus and can be directly inserted into a compliant computer to allow for real-time signal processing and digital image processing. It supports multiple signal connection modes including AD input, Analog output, digital input, digital output, clock and trigger. It also has AD internal and external trigger modes. It is capable of multiple-instrument synchronization.

This high performance PCI data acquisition module belongs to GAO’s family of Data AcquisitionModules. Other featured products in this line are PCI Synchronous Data Acquisition Board which is an ideal tool for real-time signal processing as well as digital image processing; Data Acquisition Module which offers 8-channel/16-channel single-ended inputs or 8- channel differential inputs and can select different input or single-ended input by JP3 and JP5; and USB Data Acquisition Module which is ideal for waveform and processing system analysis as well as the industrial production process control monitoring.

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Toronto, Canada -

This DDS function generator, model A0230008, provides a sampling rate of 100 MSa/s, a vertical resolution of 8 bit and a waveform length of 1 k-pts. It also provides key operation for all functions, menu display and rotary dial adjustment. It has 32 pre-stored waveforms including: Sine, Square, Triangle, Ramp, and Pulse and 8 user-defined arbitrary waveforms.

This DDS function generator can store up to 40 groups of settings. It provides a stable output waveform down to 1 mV (50 Ω). This generator has CHA & CHB ADD functions. It is equipped with an RS232 interface and optional 200 MHz frequency counter and power amplifier. In addition, modulations including FM, FSK, PSK and ASK can be generated.

This high performance DDS function generator belongs to GAO’s family of Logic Analyzers and Generators. This line also has other similar products that are suitable for different needs. For example, DDS Function Generator provides protection against over voltage, over current, short circuit and reverse voltage; DDS Function Generator is used in development, testing and repair of electronic equipment; and Digital RF Millivoltmeter and Frequency Counter utilizes a new kind of micro-controller and measures sinusoidal signal voltage over a wide frequency range of 10 kHz to 2000 MHz.

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Toronto, Canada -

This wireless data transmission terminal device, model A0K30001, is able to realize long-distance communications, wireless communications and Network communications. The data transmission module provides three working modes including on-line forever, idle offline and idle power-off and has an automatic re-connection function. It also offers local and remote graphical interface for configuration and the maintenance and its firmware can be upgraded locally or remotely.

This wireless data transmission module features reliable design with redundant hardware and software and a built-in watchdog. It is capable of 8-channel 16-bit differential isolated analog input and 2-channel 12-bit isolated analog output, 8-channel isolated digital input and 8-channel relay output. This module transfers data to a computer via RS232 or RS485 port.

This high performance wireless data transmission module belongs to GAO’s family of Data Acquisition products. This line also includes other similar products which can fulfill customers’ demands. This line contains Data Acquisition Board which can be directly inserted into a computer to allow for real-time data acquisition and control applications within the scope of Windows systems, Data Acquisition Module which is also commonly used in monitoring systems for industrial production processes and PCI Synchronous Data Acquisition Board which is an ideal tool for real-time signal processing as well as digital image processing.

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Toronto, Canada -

This high performance 4 channel color video quad processor, model A0410003, supports both PAL and NTSC format. It provides 4 video input channels, 1 DVR channel and 2 alarm inpust and 1 video output channel, VCR and alarm output. It also supports multiple video display modes including sequence switching, single picture, picture-in-picture, image zoom and freeze frame. Alarm modes include video loss, motion detection and external alarm input.

The video quad processor provides high-quality split screen output for real-time multiple video channel display, live monitoring or recording purpose. It also delivers high resolution pictures with broadcast quality and has a date and time stamp generator built in. It uses RS232 and RS485 interfaces to transfer data.

This 4 channel color video quad processor belongs to GAO’s family of Quad Processors and Video Multiplexers. Featured products in this line include 8 Channel Color Video Quad Processor which provides 8 CH video input, 1 CH DVR and 2 CH alarm input and 1CH video and VCR and alarm output, and 9 Channel Real Time Color Video Multiplexer which provides high resolution real time video on all 9 channels. It also has another two advanced products: 16 Channel Real Time Color Video Multiplexer and CCTV: Color Video Quad Processor.

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Toronto, Canada -

This durable and compact optical laser source, model C0220005, features high sensitivity and reliability and highly accurate measurements. It utilizes automatic power control (APC) and automatic temperature control (ATC) techniques for efficient testing and is compatible with other optical instruments. It is available in different versions for different applications offering great flexibility for testing, installing and maintaining single mode and multimode optical networks.

This high performance laser source provides optional operating wavelengths of 1310 nm, 1550 nm, 1310/1550 nm, 650/1310/1550 nm, 850/1310/1550 nm, 850/1300 nm, 1490/1310/1550 nm and 1625/1310/1550 nm. It also offers optional modulation frequencies including CW, 270 Hz, 1 kHz and 2 kHz to meet various requirements. In addition, it has FC, SC and ST interfaces and is powered by two AA 1.2 V nickel-hydrogen rechargeable batteries.

This compact optical laser source belongs to GAO’s family of Light Sources. This line also includes Fiber Optic Multimeter which integrates both an optical power meter module and an optical light source module in one unit and performs closed-loop tests by using both modules; Handheld Fiber Optic Light Source which source can be used in conjunction with other types of test equipment such as power meters and fiber identifiers to test fiber optic cables; and Handheld Adjustable Light Source which provides 1 to 4 wavelengths and its output power is adjustable according to customer’s specific need.

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Toronto, Canada -

This portable mini digital oscilloscope, model A0110003, features a compact size, light weight and open source code. It is equipped with an internal 2 MB USB disk to store waveforms, user applications and for firmware upgrades. It offers advanced triggering modes including auto trigger, normal trigger, single trigger, SCAN trigger and no trigger. Scheme and source files are also available for application development. It has a large memory capacity of 4096 points for each channel. Also, its 3 inch TFT LCD screen displays test results clearly.

This multi-functional 4-channel mini digital oscilloscope belongs to GAO’s family of Portable Digital Oscilloscopes. Other featured oscilloscopes in this line are Portable Digital Scope w/FFT used for electronic circuit debugging, circuit testing, design and manufacture, education and training, automobile maintenance and testing. Handheld Two Channel 20 MHz Digital Oscilloscope w/DMM which is an ideal tool for engineers and technicians in the performance of complex measurements and troubleshooting during on-site inspection. Handheld Digital Storage Oscilloscopes as well as Portable Digital Storage Oscilloscope featuring mathematical functions, advanced triggering methods, FFT spectrum analysis and automatic parameter measurements.

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Toronto, Canada -

This light weight handheld xDSL tester, model A0010004, functions as a digital multi meter (DMM) to test loop resistance, insulation resistance, capacitance, AC-DC voltage and estimates wire length. It accurately tests the physical, network and application layers at a high speed. It can also be used in “ATUR+PC” emulation mode for testing without an additional ADSL2+/VDSL2 modem or computer.

This easy to operate xDSL tester also has a PPPoE dial-up function to obtain an IP address and conduct Ping tests including Ping loss test and Ping loopback latency test. The compact tester runs under Windows CE operating system and utilizes a graphical interface and a large memory capacity of up to 2000 ADSL test records. In addition, it is equipped with an auto-off function to save power, audio and LED status indicators and a large true color LCD with touch panel.

This high performance multi-functional handheld xDSL tester belongs to GAO’s family of ADSL Testers. Other featured products in this line are Multi-function ADSL/ADSL2+ Tester which provides multiple test functions including upstream and downstream rate measurements, error counts, modem simulation and PING and Trace testing and Pocket Size Handheld ADSL2+ Tester which is an ideal tool for ADSL/ADSL2+ network installation, maintenance and fault elimination.

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Toronto, Canada -

This low power consuming CCTV tester, model A0490001, contains a high resolution LCD screen. This easy to operate tester also offers 1 channel video generating function and RS485 data test function. It provides RS232, RS422 simplex, RS485 and multi-Protocol communications.

The CCTV meter’s operation is simplified through OSD menus. Its power is supplied via included power adapter or internal battery. When powered by two 3.6 V 18490 standard batteries, it can operate for up to 5 hours. Additionally, it is also designed to perform well even under harsh environments including temperatures between -30 to 70 degree Celsius and relative humidity from 30 % to 90 %.

This handheld multi-function CCTV tester belongs to GAO’s family of Video Equipment. Another featured product in this line is the 7 Inch Industrial Panel PC with WinCE 5.0 featuring standard communication interfaces including Gigabit Ethernet and isolated RS232/RS485 serial ports, which can connect to industrial automation PLC, DCS, SCADA and PAC systems for production and factory automation applications. This family also includes 9 Channel Real Time Color Video Multiplexer which can be widely used in security monitoring, highway monitoring, toll station video surveillance system, industrial closed circuit television surveillance and high quality video conferencing and 4 Channel Color Video Quad Processor which provides high-quality split screen output for real-time multiple video channel display, live monitoring or recording purpose.

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Toronto, Canada -

This PCI synchronous data acquisition board, model A0K10006, features signal input and output connectors with physical ID number set though DIP switches. It provides multiple signal connection modes including analog signal, synchronous trigger plus signal, clock signal and trigger signal. It has four status indicators including TRIG, PCI, ADC and PWR.

This module operates at a sampling rate of up to 80 KHz/ch and offers an 8 k-word FIFO memory with three memory signs including full, non-empty and half-full. It has internal and external A/D clock functionsand auto-calibration function. It also provides AD internal and external trigger modes and implements multiple-instrument synchronization.

This high performance PCI data acquisition module belongs to GAO’s family of Data Acquisition Products. Other featured products in this line are Data Acquisition Module which can be directly inserted into an Ethernet interface for product quality testing and systems for different areas of data acquisition, waveform analysis and processing, USB Data Acquisition Module which features a small size, plug and play operation and is well suited for precise data acquisition analysis applications and Wireless Data Transmission Module which offers local and remote graphical interface for configuration and maintenance.

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Toronto, Canada -

This radio frequency spectrum analyzer, model A0070002, operates over a wide frequency range of 9 kHz to 3 GHz. The analyzer provides a resolution bandwidth of 100 Hz to 1 MHz at an accuracy of ± 25% (1 MHz) or ± 10% (<1 MHz). It offers a maximum safety level of CW 27 dBm DC Level ± 20 V. Its internal non-volatile memory can store 200 records, which can be downloaded via its RS232 interface.

All RBW/VBW filters and medium frequency/video detectors are digital. This analyzer conforms to third-level equipment standard in GJB3947–2000. The radio frequency spectrum analyzer is equipped with a 6-inch VGA TFT color LCD screen providing clear signal details. In addition, its large capacity rechargeable lithium battery ensures a long operating time of up to 4 hours.

This radio frequency spectrum analyzer belongs to GAO’s family of Telecom Testers and Analyzers. Other featured products in this line are Multi-Function ADSL/ADSL2+ Tester which provides multiple test functions including upstream and downstream rate measurements, error counts, modem simulation and PING and Trace testing; SDH/PDH Transmission Analyzer which performs on-line and off-line tests of T1, E1, E2, E3, E4, DS1, DS3, STM-1 (155M), STM-4 (622M), and STM-16 (2.5G) and Integrated Data Transmission Analyzer which is used for measuring the error rate of data communication and for the analysis of line faults and their causes for the routine maintenance testing of 2M systems, N×64 k communication channels.

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Toronto, Canada -

This data transmission analyzer and E1/T1 BER tester, model A0020004, offers online monitoring for routine maintenance, repair and operations monitoring of communication equipment. It offers a special remote function to perform real time monitoring. This tester has testing functions for G.703, V.24/RS232, V.35, V.36/RS449, X.21, EIA-530/530A, end-to-end testing, voice and frequency measurement, remote loopback testing, E1 pulse mask, and PING testing.

The analyzer has a large memory capacity of 5000 records and has a large, backlight color TFT LCD. It has an RJ45 interface and complete TCP/IP protocols with online upgrade available. The measurable electrical level range is -39 to 6 dBm with an accuracy of ±0.3 dBm. Powered by 8.4 V/1200 mAh rechargeable lithium battery, this analyzer allows for up to 8 hours of continuous operation.

This high performance and multi-functional data transmission analyzer and E1/T1 BER tester belongs to GAO’s family of E1 BER Testers which includes products such as SDH/PDH Transmission Analyzer which is used for pulse mask analysis, overhead analysis, point analysis and anomaly/defect analysis as well as bit error rate (BER) testing; Integrated Data Transmission Analyzer which is an ideal tool for testing access networks, transmission networks, and digital data networks; Handheld E1 Bit Error Rate Tester which features self-check and keyboard testing, extensive error and alarm generation, detection and indication and Portable E1/Datacom Transmission Analyzer.

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Toronto, Canada -

This 200 MHz USB PC based oscilloscope, model A0120008, is easy to carry and is suitable for use with a notebook computer. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. It also provides 20 measurement functions as well as FFT spectrum analysis. It is equipped with a USB2.0 interface without the need for an external power source.

This high performance 9-bit, two-channel 200 MHz USB PC based digital storage oscilloscope combines the functions of an oscilloscope, spectrum analyzer, waveform recorder, signal generator and multi-meter into this single device. It operates at up to 200 MS/s real-time sampling. Its waveform output can be saved in text, MS Word, Excel or graphic (JPG or BMP) formats under Windows 98 to Windows Vista OS.

This 200 MHz USB PC based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. Other similar products in this line are 40 MHz USB PC Based Oscilloscope which offers 23 measurement functions, 60 MHz USB PC Based Oscilloscope which operates at up to 150 MS/s real-time sampling rate at a bandwidth of 60 MHz and 100 MHz USB PC Based Oscilloscope. It also includes Digital Storage Oscilloscope which integrates a digital oscilloscope, a logic analyzer, a FFT spectrum analyzer, an electronic counter and a clock Jitter analyzer into one device.

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Toronto, Canada -

This compact and powerful real time color video multiplexer, model A0410002, has the ability to freeze frame and provides multi-screen display and recording. It provides multiple video display modes including sequence switch, single picture, picture-in-picture, 4 picture, 8 picture, 9 picture, freeze frame and zoom. Alarm modes include video loss alarm, video motion alarm and external alarm.

This color video multiplexer provides 9 active TTL high/low input and 1 programmable output as normally open or normally closed. It exchanges data via an RS232 or RS485 interface. Video resolution is adjustable for each channel individually. Also, it boasts live play back and recording at the same time.

This 9 channel real time color video multiplexer belongs to GAO’s family of Quad Processors & Video Multiplexers. Other featured products in this line are 4 Channel Color Video Quad Processor which provides 4 CH video, 1 CH DVR and 2 CH alarm input and 1CH video, VCR and alarm output; CCTV: Color Video Quad Processor which supports both PAL and NTSC standards and can freeze all the windows simultaneously; 16 Channel Real Time Color Video Multiplexer and 8 Channel Color Video Quad Processor which deliver high resolution pictures with broadcast quality and have a built in date and time stamp generators.

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Toronto, Canada -

This versatile handheld CATV/ QAM analyzer, model A0N00014, has digital signal analysis functions for channel power, MER, BER and constellation diagrams for 16/32/64/128/256QAM/QPSK modulation types. Analog channel analysis includes single-frequency level, carrier levels for the full channel spectrum, HUM, modulation depth, TILT and C/N. It offers multiple functions such as CM statistic function, Ping function and bandwidth testing function.

The compact analyzer operates over a frequency range of 5 to 1000 MHz. It runs under Linux operating system, has a built-in Web browser and exchanges data via a USB or LAN port. Its cable modem testing mode is compatible with DOCSIS 1.X, 2.0 and 3.0. It is powered by a 14.8 V 2.1 Ah rechargeable battery providing more than 5 hours continuous operation.

This portable CATV/ QAM analyzer belongs to GAO’s family of CATV Meters & Instruments. This line of CATV testers features rugged and compact design making them a perfect choice for field use. Featured products include Handheld CATV Signal Level Meter which tests CATV signal levels in both channel and frequency modes and has the ability to display two channels simultaneously, High-performance Digital Signal Level Meter which conducts measurements of digital-analog-mixed networks, performs Tilt, C/N, Voltage and V/A tests and also offers MER and BER testing.

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Toronto, Canada -

This portable TDR cable fault locator, model GAO A0080001, features a field calibration function and performs testing of insulation resistance and loop resistance. It provides a 0 m dead zone test distance and a contrast function for 2 waveforms. It is suitable for testing 0.32 mm, 0.4 mm, 0.5 mm, 0.6 mm telephone cables. Also, it stores 10 testing waveforms, and measurement results can be uploaded through the USB interface.

Using DAGC (Digital Automatic Gain Control) and Digital Waveform Automatic Recognition technologies, this cable fault locator is able to automatically recognize faults which are not found with manual testing. It operates in both pulse reflection testing and bridge testing modes. In pulse mode, the locator tests for line breaks with a wide measurement range of 0 m to 8 km. In bridge mode, it locates shorts and bad insulation with an error rate of 1 percent of full length. It is powered by a built-in 2 Ah lithium-ion rechargeable battery allowing for a long operation period of 6 hours.

This TDR cable fault locator belongs to GAO’s family of Telecom Line Testers. This line includes two other technically advanced line testers including TDR Cable Fault Locator, which features full automatic and manual testing functions, automatic balance and gain adjustment and a testing dead zone of 0 m and Compact Telecom Line Tester, which incorporates the functions of a telephone set, a circuit performance tester and a security tester making it a comprehensive device for detecting line errors.

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Toronto, Canada -

This innovative handheld fiber optic OTDR, model C0250003, features an extra-short event dead zone of only 1.6 m, a high resolution of 0.125 m, 65 k sampling points and a convenient visible fault location (VFL) function. It provides quick auto measuring mode, hand testing mode, average testing mode and blind zone testing mode for different test requirements. This OTDR operates at 3 wavelengths including 1310/1550 nm ± 20 nm, 1550/1625 nm ± 20 nm and 1310/1550/1490 nm ± 20 nm in single mode fiber applications for selection.

The OTDR has a large memory capacity of 800 waveforms. Test results are transferred to a computer through a USB interface for data storage, further analysis, reporting and printing. It offers a one-key operation function making it easy-to-use for technicians and engineers. Its TFT LCD touch screen allows for clear graph analysis and its built-in lithium battery ensures up to 10 hours of continuous operation. In addition, FC/UPC fiber connector is available.

This handheld optical time domain reflectometer belongs to GAO’s family of OTDRs. Two other advanced OTDRs are available in this line. One of them is Handheld Fiber Optic OTDR which features unique hot key design and can be used in both single mode (1310/1550 nm) and multi mode (850/1300 nm) fiber applications; another is Multi-Function Optical Time Domain Reflectometer which provides both auto and manual measurement modes and three print modes including standard mode, compressed mode and curve mode.

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Toronto, Canada -

This high-speed, high-precision data acquisition module, model A0K10007, is also commonly used in monitoring systems for industrial production processes. It delivers the performance demanded in the fields of real-time signal processing and digital image processing. This module operates at a sampling rate of up to 250 kS/s and offers a 16 k word FIFO memory with three memory signs including full, non-empty and half-full.

This PCI data acquisition module features signal input and output connectors, internal and external clock function and analog input auto-calibration. It provides multiple signal connection modes such as AD Input, Analog Output, Digital Input, Digital Output, Clock and Trigger. It also provides AD continuum, grouping sampling function, and multiple-instrument synchronization.

This high performance PCI data acquisition module belongs to GAO’s Data Acquisition family of products. This line also includes other similar products such as Data Acquisition Board which can be directly inserted into a Windows based  computer to allow for real-time data acquisition and control applications, Wireless Data Transmission Module which is designed based on GPRS and provides AI, AO, DI, and DO capabilities and is able to realize long-distance communication, wireless communication and network communication and PCI Synchronous Data Acquisition Board which is an ideal tool for real-time signal processing as well as digital image processing.

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Toronto, Canada -

This Nortel compatible 1000Base-SX SFP transceiver, model C01HP101, operates at a nominal wavelength of 850 nm. It provides a high operating data rate of up to 1.25 Gbps. It also provides standard AC coupled CML for high speed signal and LVTTL control and monitoring of signals. This transceiver features a hot-pluggable SFP footprint, duplex LC connector, low power dissipation and RoHS compliance.

This small form factor optical transceiver consists of two sections: the transmitter uses an 850 nm VCSEL laser; the receiver section uses an integrated InGaAs detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC. It provides a transmission distance up to 550 m on 50/125 μm MMF and up to 300 m on 62.5/125 μm MMF. In addition, the transceiver is compliant with SFP Multi-Source Agreement (MSA) Specification and SFF-8472.

This Nortel compatible 1000Base-SX SFP transceiver belongs to GAO’s family of NORTEL Compatible Optical Transceivers. This line also includes Nortel Compatible 1000Base-T GBIC Copper Transceiver which adheres to Gigabit Ethernet IEEE 802.3 and 1000BASE-T standards and provides a quick and reliable interface for Gigabit Ethernet applications, Nortel Compatible 1000Base-T SFP Transceiver which supports1000 Mbps full duplex data-links with 5-level Pulse Amplitude Modulation (PAM) signals and Nortel Compatible 1000Base-ZX SFP Transceiver which is designed for single-mode fiber (SMF) and operates at a nominal wavelength of 1550 nm.

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Toronto, Canada -

This high performance TV signal analyzer, model A0N00020, provides analog and digital TV and satellite TV monitoring and different video decoding using DSP technology. It supports both SD and HD video formats, CAM (Conditional Access Module) for encrypted channels and also PAL/NTSC/SECAM color systems. This versatile TV signal analyzer is available with spectrum measurement, DVB-S/S2 signal analysis, DVB-C signal analysis, remote feed and control signal setting and TS analysis and monitoring.

This TV signal analyzer conducts fast spectrum analysis over 5 MHz to 2150 MHz frequency span which covers TV broadcasting and satellite IF signals. It provides power level, MER, BER, and constellation measurement and is helpful to find the interference signal under the QAM mask. The handheld TS analyzer can act as an MPEG2 transport stream analyzer and monitor via TS-ASI input and RF input. It is compatible with DVB-CI descrambling interface. The analyzer is equipped with a high resolution 7” TFT LCD and windows style menus for easy operation. In addition, optional IPTV analysis and GPS are available as are HDMI, LAN and USB interfaces.

This high performance TV signal analyzer belongs to GAO’s family of CATV Meter & Instruments. This line offers several handheld CATV testers including Handheld CATV Signal Level Meter which tests CATV signal levels in both channel and frequency modes and measures CATV TILT, C/N and trunk cable voltage effectively and accurately, Handheld CATV/QAM Analyzer which has digital signal analysis functions for channel power, MER, BER and constellation diagrams, and Portable CATV Signal Analyzer which tests DVB-C digital signal features including average peak power, MER, BER, C/N, EVM.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada -

This handheld optical power meter, model C0260008, efficiently performs both absolute power measurement and relative power measurement. It tests optical power at a wavelength range of 800 nm to 1700 nm. Calibrated wavelengths including 850, 1300, 1310, 1490, 1550, and 1625 nm are available. The power meter provides multi-wavelength precise measurements and conducts light identification and indication of 270 Hz, 330 Hz, 1 kHz and 2 kHz frequency. It can also be used for linearity and non-linearity testing and can display both direct and relative tests of optical power.

This portable optical power meter features an InGaAs detector, auto off function, and low voltage indication. It is compatible with standard adapters (FC, ST, SC, LC) for connection to diverse fiber ports. This easy-to-use meter is equipped with a large LCD display with backlight and is powered by 4 AA batteries for a long operating duration of approximately 150 h. Moreover, it has a durable construction and is a perfect choice for a wide range of field applications.

This handheld optical power meter belongs to GAO’s family of Power Meters. This line includes a many portable meters for absolute optical fiber power measurement as well as fiber optic loss related measurement. One such product is Fiber Optic Multimeter which performs closed-loop tests by using both optical power meter module and optical light source module. Another is Handheld Optical Power Multi Meter which utilizes internal microprocessor and linearity magnification technology for long term calibration and accurate test. Other featured products are also available such as Handheld Optical Power Meter which offers automatic wavelength identification and switching to intelligent backlight control.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada -

This 7 inch industrial panel PC, model A0490002, features a fanless, shock-proof design and low power consumption. It also features standard communication interfaces including Gigabit Ethernet and isolated RS232/RS485 serial ports, which can connect to industrial automation PLC, DCS, SCADA and PAC systems for production and factory automation applications. This device is equipped with a 4-wire resistive touch screen and with a panel resolution of 800 x 480, 260 k colours.

This compact industrial panel PC runs under Win CE operating system and has a built-in rechargeable battery making the computer panel ideal for embedded applications in environment where power is intermittent. It provides 2 GB FLASH and 128 MB SDRAM memory for data storage.

This portable 7 inch industrial panel PC belongs to GAO’s family of CCTV & Video Equipment. Other featured products in this line include Handheld Multi-Function CCTV Tester which is an ideal device for installers and field technicians to test video, PTZ function, and status of UTP cables conveniently and efficiently, 4 Channel Color Video Quad Processor which works for many applications such as video entertainment, multimedia applications, security surveillance, industrial monitoring and video preview applications where multiple images are required in a limited space and 16 Channel Real Time Color Video Multiplexer.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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Toronto, Canada -

This portable handheld fiber optic OTDR, model C0250001, features a unique hot key design making it convenient and quick to conduct, review and analyze test results. It provides highly precise measurements and a large memory capacity of 300 test curves. The OTDR provides real time and average time test modes for technicians’ different requirements. It tests the length of the optical cable or optical fiber, loss, attenuation coefficient between two points, insertion loss of the optical connector, and return loss of the fiber.

This fiber optic OTDR transfers test results to a computer for further analysis, reporting and printing via RS232 or USB port. It is complete with interchangeable adaptors (FC/SC/ST) for connection to different fiber types. It is equipped with LCD indicators for battery charging and LD lasing status indications and has a Ni-MH rechargeable battery for over 3.5 hours of continuous testing on a single charge. This OTDR is resistant to dust, moisture, and shock and is able to withstand drops from a height of 1 meter by test. In addition, PC software is also included for data review.

This handheld fiber optic OTDR belongs to GAO’s family of OTDRs. Two other similar products are included in this line for detection of cable length, overall attenuation and break points. One is the Multi-Function Optical Time Domain Reflectometer which features a short event dead zone of 1.6 m, a high resolution of 0.025 m, 128 k sampling points, and a convenient visible fault location (VFL) function. Another is the Handheld Fiber Optic OTDR which provides quick auto measuring mode, average testing mode and blind zone testing mode.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada -

This multi-function logic analyzer, model A0220001, also includes features of a multi-channel oscilloscope. It offers a variety of digital information capture functions, a large memory capacity and multiple trigger modes. The analyzer is capable of observing a sizable amount of data and data flow direction control information simultaneously and captures narrow pulse interference information. Its delay function allows it to capture the waveforms prior to or behind the required observation points.

This 500 MHz, 34-channel logic analyzer uses advanced large-scale integrated circuits, high-frequency digital circuits, embedded systems and the other advanced technologies. It has an integrated USB 2.0 interface and has CPLD and FPGA functionality. This analyzer is able to see error messages and locate faults in the source code. It returns dynamic analysis results in binary, decimal, hexadecimal or ASCII format to facilitate debugging. In addition, it operates under Windows 2000, Windows XP and VISTA systems.

This easy to use logic analyzer belongs to GAO’s family of Automotive Oscilloscopes. This line also includes 4-Channel Automotive Tester/Diagnostic Oscilloscope which can be used either in the workshop or on the road to test and measure virtually all of the electrical and electronic components and systems in motor vehicles, Portable Digital Scope w/FFT which is commonly used for electronic circuit debugging, circuit testing, design and manufacture, education and training, automobile maintenance and testing and Handheld Two Channel 20 MHz Digital Oscilloscope w/DMM which integrates a digital oscilloscope (DSO), a digital Multimeter (DMM) and a Cymometer into one unit.

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Toronto, Canada -

This high performance oscilloscope, model A0120001, is an 8 bit, two-channel computer based USB digital storage oscilloscope. It combines the functions of an oscilloscope, spectrum analyzer, waveform recorder, signal generator, voltmeter and cymometer. The digital oscilloscope has 23 measurement functions and PASS/FAIL checking functions. It has auto, normal and single triggering modes with adjustable triggering levels.

The scope provides FFT spectrum analysis and four adjustable vertical modes including CH1, CH2, Dual and Add. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. Waveforms can be saved in text, MS Word, Excel or graphic files (JPG or BMP) formats under most Windows OS up to Vista. In addition, it is compatible with USB 2.0 and requires no external power.

This easy to use USB PC based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. GAO’s USB PC Based Oscilloscope combines a high performance PC based digital storage oscilloscope (DSO), two/four 8 bit channels, 80MHz bandwidth, 250MSa/s sample rate, and 256K/512K/1Mega sample memory buffer with an eight/sixteen 250MHz channels’ logic analyzer and an FFT spectrum analyzer. This line also includes 60 MHz USB PC Based Oscilloscope, 100 MHz USB PC Based Oscilloscope and Digital Storage Oscilloscope which efficiently solves complicated trigger problems by providing a comprehensive set of triggers such as rising or falling edge, pulse width, delayed, and count.

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Toronto, Canada -

This handheld adjustable light source, model C0220003, uses an FP-LD emitter and operates at wavelengths of 1310/1550 nm and 1310/1490/1550/1625 nm. Its optional modulation frequencies are CW, 270 Hz, 330 Hz, 1 kHz and 2 kHz. The compact light source provides tone generation for multiple sound frequencies including 270 Hz, 330 Hz, 1 kHz, and 2 kHz. It has an adjustable step size of less than 0.5 dBm and stability of 0.15 dB/30 min at 20 °C.

Its unique intelligent backlight control greatly reduces power consumption by adjusting the light intensity according to ambient light. The light source is powered by 8.4 V AC adapter or 3 AA 1.5V alkaline batteries for up to 45 hours of continuous operation. FC and PC fiber ports are available

This handheld adjustable light source belongs to GAO’s family of Light Sources. Featured products in this family include Compact Optical Laser Source which performs efficient tests relying on its utilization of automatic power control (APC) and automatic temperature control (ATC) techniques, Handheld Fiber Optic Light Source which features 1 to 4 output wavelengths to meet specific requirements including 650 nm red source and Handheld Optical Power Multi Meter which integrates an optical source and optical power meter into one device and conducts absolute and relative power tests, optical loss tests. These light sources are ergonomically designed and easy-to-use making them ideal tools for technicians

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Toronto, Canada -

This 5-in-1 oscilloscope, model A0120005, integrates a digital oscilloscope, a logic analyzer, a FFT spectrum analyzer, an electronic counter and a clock Jitter analyzer into one device. It supports up to 512 trigger levels and efficiently solves complicated trigger problems by providing a comprehensive set of triggers such as rising or falling edge, pulse width, delayed and count.

The oscilloscope provides a maximum repeating sampling rate of 20 GSa/s and single shot sampling rates of up to 1GSa/s. This oscilloscope has 4M/8M sample data acquisition buffers on each channel. It offers a fast Fourier transformation (FFT) function for bandwidth tests. In addition, it is also compatible of X-Y plot, Multi-Window software, timing state display for logic debug as well as optional DLL libraries.

This digital storage oscilloscope belongs to GAO’s family of USB PC Based Oscilloscope. This line provides a series of multi-featured products to meet a variety of demands. It includes 40 MHz USB PC Based Oscilloscope which is a high performance 8-bit, two-channel computer based USB digital storage oscilloscope, 60 MHz USB PC Based Oscilloscope which operates at up to 150 MS/s real-time sampling rate at a bandwidth of 60 MHz, and 100 MHz USB PC Based Oscilloscope with higher bandwidth.

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Toronto, Canada -

This portable E1 BER tester, model A0040007, features self-check and keyboard testing, extensive error and alarm generation, detection and indication. It conducts clock slip measurement, frequency and level measurement as well as manual and auto-timer measurements. It also boasts full-featured measurements of E1, Datacom and protocol analysis.

This easy to use BER tester provides smart menu navigation and has a large color LCD screen allowing test results to be clearly displayed. Test results can be uploaded for further analysis and printing via included software which is upgradeable via an integrated RS232C interface. In addition, it has built-in Ni-MH rechargeable batteries and smart charger circuitry (automobile adaptor included) allowing more than 6 hours operation with a single battery charge.

This handheld E1 Bit Error Rate (BER) tester belongs to GAO’s family of E1 BER Testers. This line also includes Portable E1/Datacom Transmission Analyzer which performs E1 frame data monitoring and analysis, dual E1 channel testing, loop delay, APS delay, pulse measurement, jitter measurement, signal level measurement, Data Transmission Analyzer and E1/T1 BER Tester which has testing functions for G.703, V.24/RS232, V.35, V.36/RS449, X.21, EIA-530/530A, end-to-end testing, voice and frequency measurement, remote loopback testing, E1 pulse mask, and PING testing. SDH/PDH Transmission Analyzer and Integrated Data Transmission Analyzer are another two featured products in this line.

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Toronto, Canada -

This XDS510 USB plus JTAG emulator, model B0M00004, features a compact and ultra-thin design, easy installation, and a durable JTAG plug. The emulator uses 560 JTAG POD simulation techniques and conducts full space emulation. It fully supports the latest DaVinci™ platforms from Texas Instruments.

This multi-chip, dual-core DSP emulator operates at a high programmable TCK frequency of up to 32 MHz and a data transmission rate of up to 480 Mbps. It supports the following TI DSPs: LF24xx, F28xx, VC33, C54xx, C55xx, C62xx, C67xx, C64xx, DM64x, C643x, DM64xx, DM270, DM320, DM35x, C64+ as well as the latest CPU emulator of the DaVinci™ series. This emulator utilizes USB 2.0 and 14-pin JTAG interfaces for data exchange and runs under operating systems from Windows 2000 to Windows 7.

This XDS510 USB plus JTAG emulator belongs to GAO’s family of TI DSP Emulators & Debuggers. Another two products in this line are JTAG Scan Path TI DSP Emulator Pod which is designed for hardware and software debugging and flash programming and XDS510 USB 2.0 Enhanced TI DSP Emulator which features a compact size, plug-and-play operation, a high operating speed and multi-DSP emulation. GAO’s family has provided the users a lot of featured products with good quality, competitive price and good service and is well accepted by most customers in North America.

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Toronto, Canada – GAO Tek Inc.

This handheld optical visual fault locator, model C0280004, has a 650 nm visible laser source that transmits continuous light or 1 Hz adjustable strobe light into a fiber allowing the user to visually detect a fiber fault over distances of up to 9 km. It operates for up to 80 hours with modulated light and up to 50 hours with continuous light using 2 1.5 V AA alkaline batteries. Featuring pen-shaped design, lightweight, simple operation and long operating time, it is a popular choice among field technicians.

This optical visual fault locator belongs to GAO’s Visual Fault Series. Another product included in this line is Handheld Visible Laser Source which uses visible red light to indicate the location of fiber faults from a macro bend point, break, problem coupler or connector or a mechanical splice that is not well aligned.

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Toronto, Canada -

This portable E1/Datacom transmission analyzer, model A0020003, performs E1 frame data monitoring and analysis, dual E1 channel testing, loop delay, APS delay, pulse measurement, jitter measurement, signal level measurement. It also has many enhanced test functions such as “PCM Simulator”, “Mux/Demux”, “Drop & Insert” and “Network Tools”.

This easy to use analyzer provides extensive error and alarm generation, detection and indication. It can store up to 10 user-defined configurations and 10 groups of test results. Test results can be uploaded, conserved and printed through the included software via USB interface. This analyzer has a large, high-resolution backlit LCD touch screen and is powered by built-in Li-ion rechargeable batteries allowing for 4 hours’ continuous working.

This portable E1/Datacom Transmission analyzer belongs to GAO’s family of Telecom Testers and Analyzers. This line includes a lot of featured products which can fulfill different requirements, such as Multi-function ADSL/ADSL2+ Tester which provides a test solution for ADSL, ADSL2, ADSL2+, and RE-ADSL installation, maintenance and measurement, SDH/PDH Transmission Analyzer which is used for pulse mask analysis, overhead analysis, point analysis and anomaly/defect analysis as well as bit error rate (BER) testing and Handheld Portable Gigabit Ethernet Tester which is widely used in BER testing of layer1, layer2, layer3, and RFC-2544.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada -

This PCI data acquisition module, model A0K10009, is commonly used in the monitoring systems for industrial production processes. This high-speed and high-precision data acquisition module delivers the performance demanded in the fields of Real-time Signal Processing and Digital Image Processing. It supports multiple signal connection modes including AD Input, Digital Input, Digital Output, Clock and Trigger.

This module features internal and external clock functions, AD continuum and grouping sampling function, and Timer/Counter function. Its physical ID number is set by a DIP Switch. The module is capable of multiple-instrument synchronization. This module operates at a sampling rate of up to 250 kS/s and offers a 16 k word FIFO memory with three memory signs including non-empty and half-full.

This high performance PCI data acquisition module belongs to GAO’s family of Data Acquisition modules. This line also includes Data Acquisition Board which can be directly inserted into a computer to allow for real-time data acquisition and control applications within the scope of Windows systems, USB Data Acquisition Module which features a small size, plug and play operation and is well suited for precise data acquisition analysis applications, Wireless Data Transmission Module which is designed based on GPRS and provides AI, AO, DI, and DO capabilities and is able to realize long-distance communication, wireless communication and Network communication.

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This portable CATV signal level meter, model A0N00003, features a rugged, handheld design, high-speed measurement and auto-off time setup. It tests CATV signal levels in both channel and frequency modes and measures CATV TILT, C/N and trunk cable voltage effectively and accurately. This device operates over a wide frequency range of 46 to 870 MHz with a resolution bandwidth of 280 kHz ±50 kHz. It offers a level range from 30 to 120 dBµV with an accuracy of ±1.5 dBµV. It is powered by a DC 7.2 V rechargeable battery allowing it to operate continuously for more than 5 hours.

This handheld CATV signal level meter belongs to GAO’s family of CATV Meters & Instruments. This line also has other featured products such as Handheld CATV/QAM Analyzer which is designed for both digital and analog TV analysis, High Performance TV Signal Analyzer which features DVB-C/S/S2 / T signal analysis function and MPEG2/4, H. 264, SD/HD decoding and image monitoring function and TDR Cable Fault Locator which is able to automatically locate and indicate the distance to many kinds of RF cable faults such as short circuits, open circuits or high resistance points.

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This compact handheld optical power meter, model C0260006, features multi-wavelength precise measurement, simple button operation, real-time clock, absolute and relative power measurement, low voltage warning, auto power-off function. It provides a wide power measurement range of -50 dBm to 26 dBm and a high frequency range of 800 nm to 1600 nm.

The handheld optical power meter is calibrated over a large number of wavelengths to enable power measurements to be made on a wide range of single mode and multimode fiber optic cable systems. It has a large memory capacity of up to 200 groups of data items and communicates with a computer via USB port for data exchange. It is available for all common connector types including FC, SC, ST, and LC. Additionally, powered by 3.7 V 3000 mAh rechargeable lithium batteries, it provides more than 30 hours of continuous operation.

This handheld optical power meter belongs to GAO’s family of Power Meter. Featured products in this line include Handheld Optical Power Multi Meter which is suitable for construction and maintenance of fiber communications and CATV systems and Handheld PON Power Meter which is a useful tool for the construction and maintenance of the PON networks. GAO’s family has provided the users a lot of featured products with good quality, competitive price and good service and is well accepted by most customers in North America.

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This 4 port Gigabit Ethernet switch, model C0330004, converts optical/electrical Ethernet signals between 10/100/1000M UTP ports and 1000M optical fiber ports.

With an auto negotiation function, it allows for UTP ports to auto 10/100/1000M and Full duplex/Half Duplex. It also allows for VLAN and QoS and provides broadcast storm protection. It has 12 G bandwidth which can be transmitted to achieve non-blocking wire-speed.

This 4 port Gigabit Ethernet switch provides IEEE802.3x flow control in full duplex mode and back pressure flow control in half duplex mode. It provides transmission distances of up to 224 m on 50/125μm MMF and 550 m on 62.5/125 μm MMF while on 8/125, 8.7/125, 9/125, 10/125 μm SMF, it offers a transmission distance of up to 100 km. Additionally, it has a 512 kb RAM frame buffer memory.

This 4 port Gigabit Ethernet switch belongs to GAO’s family of Fiber Switches. This line includes a variety of products such as 1000M Dual Port Media Converter which conducts mutual conversion between 1000Base-T twisted pair electrical signal and 1000Base-SX/LX optical signal, 6 Port 10/100Base-TX Ethernet Switch with 1 Port 100Base-FX Uplink and 6 Port 10/100Base-TX Ethernet Switch with 2 Port 100Base-FX Uplink.

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This PCI data acquisition module, model A0K10009, is commonly used in the monitoring systems for industrial production process. This high-speed and high-precision data acquisition module delivers the performance demanded in the fields of Real-time Signal Processing and Digital Image Processing. It supports multiple signal connection modes including AD Input, Digital Input, Digital Output, Clock and Trigger.

This module features internal and external clock functions, AD continuum and grouping sampling functions, and Timer/Counter functions. Its physical ID number is set by DIP switch and it also can realize multiple-instrument synchronization. This module operates at a sampling rate of up to 250 kS/s and offers a 16 k word FIFO memory with three memory signs including non-empty and half-full.

This high performance PCI data acquisition module belongs to GAO’s family of Data Acquisition Modules. This line also includes Data Acquisition Board which can be directly inserted into a computer to allow for real-time data acquisition and control applications within the scope of Windows systems, USB Data Acquisition Module which features a small size, plug and play operation and is well suited for precise data acquisition analysis applications, Wireless Data Transmission Module which is designed based on GPRS and provides AI, AO, DI, and DO capabilities and is able to realize long-distance communication, wireless communication and Network communication.

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This PCI data acquisition module, model A0K10008, features high speed and high precision. It can be directly inserted into a compliant computer to allow for real-time signal processing and digital image processing. It supports multiple signal connection modes including AD Input, Analog Output, Digital Input, Digital Output, Clock and Trigger. It also supports AD internal and external trigger modes.

This module is suitable for use in the lab, product quality testing centers and systems for different areas of data acquisition, waveform analysis and processing. It  features internal and external clock function, AD continuum and grouping sampling function and analog input auto-calibration. Its physical ID number is set by DIP switch and it is capable of multiple-instrument synchronization. Additionally, this acquisition module utilizes both signal input and output connectors.

This high performance PCI data acquisition module belongs to GAO’s family of Data AcquisitionProducts. This line also includes Data Acquisition Board which can be directly inserted into a computer to allow for real-time data acquisition and control applications within the scope of Windows systems, USB Data Acquisition Module which features a small size, plug and play operation and is well suited for precise data acquisition analysis applications, Wireless Data Transmission Module which is designed based on GPRS and provides AI, AO, DI, and DO capabilities and is able to realize long-distance communication, wireless communication and Network communication.

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This portable USB PC based oscilloscope, model A0120009, is a high performance 8-bit, two-channel computer-based digital storage oscilloscope. It combines the functions of an oscilloscope, a spectrum analyzer, a waveform recorder, a signal generator, a voltmeter and a cymometer into one unit. It has 23 measurement functions and PASS/FALL checking functions. It provides auto, normal and single triggering modes and the triggering level is adjustable.

This oscilloscope operates at a maximum real-time sampling rate of up to 250 MS/s and 100 MHz bandwidth. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. Its waveform output can be saved in text, MS Word, Excel or graphic (JPG or BMP) formats under most OS from Windows 98 to Windows Vista. In addition, it is compatible with USB 2.0 and requires no external power.

This 100 MHz USB PC based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. This line is providing a series of similar but featured products that can satisfy the consumers’ demands. It includes 40 MHz USB PC Based Oscilloscope which is a high performance 8-bit, two-channel computer based USB digital storage oscilloscope, 60 MHz USB PC Based Oscilloscope which operates at up to 150 MS/s real-time sampling rate at a bandwidth of 60 MHz and digital storage oscilloscope which is suitable for field use in sciences, medicine, engineering and telecommunications.

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This handheld signal level analyzer, model A0N00004, operates over a frequency range of 5 to 870 MHz and provides a level range of 30 to 120 dBμV at a high accuracy of ±1.5 dBuV (indoor temperature) or ± 2.5 dBuV (-10°C to 40°C).

This instrument can test CATV signal levels in both channel (SCAN) and frequency (SPECTRUM) modes. In “SCAN” mode, it can scan up to 125 channels at a speed of 30 channels/min and store signal levels as well as record signal levels in internal memory for later analysis. In “SPECTRUM” mode, it can display spectrums and tests within the frequency range. This handheld analyzer measures CATV TILT, C/N and trunk cable voltage. It has channel plan selection, channel amending, channel sorting and channel editing functions. It also has automatic off function to save power when not in use and stores 24 groups of scanned data (up to 100 channels per group). In addition, it has two RF F-Type input ports and can be powered by both DC 7.2 V/1.4 Ah rechargeable battery and AC 110 V/60 Hz to 220 V/50 Hz (±10%) allowing for continuously operation for longer than 3.5 hours on a single charge.

This handheld signal level analyzer belongs to GAO’s family of CATV Meters & Instruments. A featured product in this line is High-performance Digital Signal Level Meter which is intended for analog and digital television network construction and maintenance. This line also includes TDR cable fault locator which is able to automatically locate and indicate the distance to many kinds of RF cable faults such as short circuits, open circuits or high resistance points.

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This 9 channel real time color video multiplexer, model A0410002, provides high resolution video on all 9 channels. It is also capable of freeze frame, providing multi-screen display and recording events. It exchanges data via a RS232 or RS485 interface. Video resolution is adjustable for each channel individually. It supports live play back and recording at the same time.

This color video quad processor supports multiple video display modes including sequence switch, single picture, picture-in-picture, 4 picture, 8 picture, 9 picture, freeze frame and zoom. Alarm modes include video loss alarm, video motion alarm and external alarm. It provides 9 active TTL high/low input and 1 programmable output as normally open or normally closed.

This 9 channel real time color video multiplexer belongs to GAO’s family of Quad Processors & Video Multiplexers. A similar product in this line is 16 Channel Real Time Color Video Multiplexer. This line also includes 4 Channel Color Video Quad Processor which provides 4 CH video, 1 CH DVR and 2 CH alarm input and 1CH video, VCR and alarm output and CCTV: Color Video Quad Processor which supports both PAL and NTSC standards and can freeze all the windows simultaneously. This line of products can be used for schools, homes, factories and traffic surveillance equipment.

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This Nortel compatible 1000Base-SX SFP transceiver, model C01HP101, operates at a nominal wavelength of 850 nm. It provides a high operating data rate of up to 1.25 Gbps. It also provides standard AC coupled CML for high speed signal and LVTTL control and monitoring of signals. This transceiver features a hot-pluggable SFP footprint, duplex LC connector, low power dissipation and RoHS compliance.

This small form factor optical transceiver consists of two sections: the transmitter uses an 850 nm VCSEL laser; the receiver section uses an integrated InGaAs detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC. It provides a transmission distance up to 550 m on 50/125 μm MMF and up to 300 m on 62.5/125 μm MMF. In addition, the transceiver is compliant with SFP Multi-Source Agreement (MSA) Specification and SFF-8472.

This Nortel compatible 1000Base-SX SFP transceiver belongs to GAO’s family of NORTEL Compatible Optical Transceivers. This line also includes Nortel Compatible 1000Base-T GBIC Copper Transceiver which adheres to Gigabit Ethernet IEEE 802.3 and 1000BASE-T standards and provides a quick and reliable interface for Gigabit Ethernet applications, Nortel Compatible 1000Base-T SFP Transceiver which supports1000 Mbps full duplex data-links with 5-level Pulse Amplitude Modulation (PAM) signals and Nortel Compatible 1000Base-ZX SFP Transceiver which is designed for single-mode fiber (SMF) and operates at a nominal wavelength of 1550 nm.

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This easy-to-install TI DSP emulator, model B0M00003, runs under Windows 98/NT/2000/XP operating systems and is equipped with a standard high-speed USB 2.0 interface and JTAG emulation interface that saves computer resources. It features a compact size, plug-and-play operation, a high operating speed and multi-DSP emulation.

This hot-pluggable TI DSP emulator boasts a high emulating speed and performs real time data exchange (RTDX) with data transfer rates of up to 480 MB/s. It is self-regulated to the DSP voltage of the target board and is capable of preventing the system from crashing and becoming non-rebootable when the power of target board goes off. In addition, it offers flash programming for F28x/F240x/F24x/F20x.

This XDS510 USB 2.0 Enhanced TI DSP Emulator belongs to GAO’s family of TI DSP Emulators &Debuggers. This line of products also includes JTAG Scan Path TI DSP Emulator Pod which supports TI DSP and Microcontrollers with JTAG interface (C2xx, C24x, F240x, F28xx, VC33, C4x, C5x, C54xx, C55xx, C6xxx, C64xx, TMS470, OMAP) and is suitable for debugging hardware, debugging software as well as flash programming, and XDS510 USB Plus JTAG Emulator which is a DSP development tool (DSP emulator) which uses XDS560 JTAG technology to greatly improve its stability and anti-interference capabilities.

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This durable and compact optical laser source, model C0220005, is available in different versions for different applications offering great flexibility for testing, installing and maintaining single mode and multimode optical networks. Featuring a large LCD screen, sleek design and easy operation, this laser source is ideally suited for field work. It is equipped with FC, ST and SC adapters.

This laser source conducts efficient tests relying on its utilization of automatic power control (APC) and automatic temperature control (ATC) techniques. It provides optional operating wavelengths of 1310 nm, 1550 nm, 1310/1550 nm, 650/1310/1550 nm, 850/1310/1550 nm, 850/1300 nm, 1490/1310/1550 nm and 1625/1310/1550 nm. It also offers optional modulation frequencies including CW, 270 Hz, 1 kHz and 2 kHz to meet various requirements. Additionally, this laser source is powered by two AA 1.2 V nickel-hydrogen rechargeable batteries.

This light weight optical laser source belongs to GAO’s family of Light Sources. This line also includes other featured products such as Handheld Laser Source which is an ideal instrument for optical network installation, trouble shooting and maintenance in fiber optic systems and is widely used for LAN, WAN, CATV and long-distance optical networks, Handheld Optical Power Multi Meter which is suitable for construction and maintenance of fiber communications and CATV systems and Handheld Adjustable Light Source which provides 1 to 4 wavelengths and its output power is adjustable according to customer’s specific need.

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This portable mini digital oscilloscope, model A0110003, performs waveform storage and playback. It has an internal 2 MB USB disk to store waveforms, user applications and for firmware upgrades. Scheme and source files are also available for application development. It offers advanced triggering modes including auto trigger, normal trigger, single trigger, SCAN trigger and no trigger. This device has a large memory capacity of 4096 points for each channel. Equipped with a full color 3 inch TFT LCD screen, it is able to display test results clearly.

This portable digital scope belongs to GAO’s family of Portable Digital Oscilloscopes. The family includes a variety of digital oscilloscopes with different bandwidths and sampling rates such as portable digital scope w/FFT which is commonly used for electronic circuit debugging, circuit testing, design and manufacture, education and training, automobile maintenance and testing, Handheld Two Channel 20 MHz Digital Oscilloscope w/DMM which features an autoscale function, automatic settings function, automatic parameter measurements, multiple wavelength calculation functions and advanced triggering options and Handheld Digital Storage Oscilloscopes which cover bandwidths from 25 MHz to 200 MHz and provide real-time and equivalent sample rates respectively from 1 GSa/s to 25 GSa/s.

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This EVM2812 TI DSP evaluation board, model B0M10002, is based on the MS320F2812 series DSPs. It features on-chip flash program memory, on-chip and extendable SRAM and extendable EEPROM. This module forms a complete digital servo motion control system by interfacing with one or two Low/High Voltage Driver boards to drive one or two motors. It utilizes two independent MC-BUS designed for motion control system and standard RS232, and CAN communication interfaces for data exchange.

This evaluation board provides on-board VL-Bus data/address/control lead-out wires and special function pins also with lead-out wires. It also offers on board IEEE1149 JTAG interface for real-time emulation. In addition, it is equipped with custom designed power supply with reference voltage to provide superior A/D sampling accuracy.

This high performance TI DSP evaluation board belongs to GAO’s family of TI DSP Evaluation Boards. This line also includes TI DSP Evaluation Board (2812EVM-I) which offers code for testing CCS, PWM, ADC, SPI, SCI, CAN communication, FFT, DC brush/brushless motor and AC motor SPWM and SVOWM, TI DSP Evaluation Board & Tool: MCK2812 LV (Low Voltage) Servomotor Driver which is designed for high performance DMC systems and High Voltage Servomotor Driver which directly connects with one or two DC brush/brushless servomotors, AC asynchronous motors, AC permanent-magnet synchronous servomotors or stepper motors to form a digital servo-motion control system.

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This full-featured E1/Datacom tester, model A0020006, features a rugged and handheld design, simple operation and real-time clock. It performs channel tests, alarm analysis, fault location and signal analysis. It has E1 bit error rate testing capability and offers out-of-service BER testing, in-service framed and unframed testing, round trip delay measurement, APS delay measurement, frequency, clock slip and level measurement. It also provides various protocol converters with one-way and bi-directional bit-error-rate (BER) test functions.

The Datacom testing function allows it to carry out ASYNC BER testing, SYNC BER testing, SYNC clock source and sense selection, handshaking signals control and monitoring. This tester also has the functions of octet timing control and monitoring, manual and auto-timer measurement, ITU-T G.821, G.826, and M.2100 performance analysis and self-check and keyboard testing.

The portable E1/Datacom tester is equipped with a high resolution backlit LCD and offers smart navigation menu. It is able to save and recall up to 10 user-defined setups and 10 sets of results. The test results can be uploaded, conserved and printed through the included software which is upgraded via an integrated RS232C interface. In addition, it is able to work continuously for up to six hours on a single charge.

This easy-to-use E1/Datacom tester belongs to GAO’s family of E1/Datacom Testers. A featured product in this line is Portable E1/Datacom Transmission Analyzer which is designed for performing comprehensive analysis, measurement and evaluation of telecom networks. The two testers are very popular among telecom test engineers due to its multiple functions, high portability and reliable performance. The family of E1/Datacom tester offers its customers valuable choices.

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This handheld Gigabit Ethernet tester, model A0060001, has both single and multiple site traffic generation functions. It is capable of identifying cable faults such as short or open circuits as well as detecting cable length. It conducts termination mode testing and frame length, frame type and used ratio status. It provides test tools including port positioning, packet capture and loopback. It boasts a large memory capacity for storage of settings and results.

This ergonomic and easy-to-carry Ethernet tester combines network testing, data packet capture, traffic generation, cable testing and BER testing into one unit. It is compliant with IEEE802.3, RFC1242 and RFC2544 standards and can be upgraded via the included software. It is able to connect with a computer via an external USB or Ethernet port for data exchange. Additionally, equipped with a 4.3 in LCD color touch screen and smart navigation menus, this tester shows all test results as texts or graphics.

This Gigabit Ethernet tester belongs to GAO’s family of Telecom Tester and Analyzer. This category can be divided into many fields that can fulfill customers’ different requirements. Featured products in this category include Portable ADSL2+ Tester which provides digital multi-meter (DMM) functionality to test subscriber telephone connectivity and line parameters, Multi-function ADSL/ADSL2+ Tester which provides a test solution for ADSL, ADSL2, ADSL2+, and RE-ADSL installation, maintenance and measurement and Handheld E1 Bit Error Rate (BER) Tester which is a compact, multi-functional, handheld E1 line test instrument, specially designed for R&D, production, installation and maintenance of SDH, PDH, PCM, and DATA protocol conversion.

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This handheld multi-function CCTV tester, model A0490001, contains a high resolution LCD screen and supports RS232, RS422 simplex, RS485 and multi-Protocol. It provides 1 channel video generating function and RS485 data test function. Its OSD menu makes the CCTV meter easy to operate and its power is supplied via the included power adapter or internal battery.

This handheld CCTV meter provides various baud rates including 2400, 4800, 9600 and 19200. It features low power consumption and a sleep mode. Powered by two 3.6 V 18490 standard batteries, this tester can be rechargeable and operate for up to 5 hours. In addition, the rugged handheld CCTV meter performs well even under harsh environments including temperatures between -30 °C and 70 °C and relative humidity from 30% to 90%.

This rugged industrial panel PC belongs to GAO’s family of Other Video Equipment.This line also includes Handheld Multi-Function CCTV Tester which is an ideal device for installers and field technicians to test video, PTZ function, and status of UTP cables conveniently and efficiently. GAO also provides many Quad Processor & Video Multiplexer such as CCTV: Color Video Quad Processor and 8 Channel Color Video Quad Processor which is suitable for many applications such as security surveillance, industrial monitoring, video entertainment, multimedia applications, and video preview applications where multiple images are required in a limited space.

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This PCI synchronous data acquisition board, model A0K10006, features signal input and output connectors with physical ID number set by DIP switches. It provides multiple signal connection modes including analog signal, synchronous trigger plus signal, clock signal and trigger signal. It has four status indicators including TRIG, PCI, ADC and PWR.

This module operates at a sampling rate of up to 80 KHz/ch and offers an 8 K word FIFO memory with three memory signs including full, non-empty and half-full. It supports internal and external clock functions of AD and auto-calibration function. It also provides AD internal and external trigger modes and realizes multiple-instrument synchronization.

This high performance PCI data acquisition module belongs to GAO’s family of Data Acquisition Products. This line also includes other similar products which can fulfill customers’ demands. This line contains Data Acquisition Board which can be directly inserted into a computer to allow for real-time data acquisition and control applications within the scope of Windows systems, Data Acquisition Module which is also commonly used in monitoring systems for industrial production processes and Wireless Data Transmission Module which is designed based on GPRS and provides AI, AO, DI, and DO capabilities and is able to realize long-distance communication, wireless communication and Network communication.

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This 4-channel automotive diagnostic oscilloscope, model A0E20001, has more than 20 kinds of automatic measurement functions, automatic cursor tracking measurements, as well as, built-in fast Fourier transform (FFT) spectrum analysis. Advanced trigger types include edge trigger and pulse trigger and trigger modes such as auto, normal and single are included. This oscilloscope also has addition, subtraction, multiplication and FFT mathematic functions. It also has a wide input voltage range from 8 to 36 V, making it suitable for vehicle power tests.

This oscilloscope operates at 60 MHz and offers a maximum real-time sampling rate of up to 200 MS/s in single channel mode and 100 MS/s in dual channel mode. It provides a vertical resolution of 8 bits/channel and a time base range from 5 ns/div to 1000 s/div. It also has acquisition modes including real-time sampling and roll modes with a buffer size from 10 k to 16 M samples. In addition, it is compatible with OS from Windows NT to Windows 7.

This 4-channel automotive tester/diagnostic oscilloscope belongs to GAO’s family of Automotive Testers. This line also contains other similar products such as Multi-function Logic Analyzer which is capable of observing a sizable amount of data and data flow direction control information simultaneously and captures narrow pulse interference information, Portable Digital Scope w/FFT which can detect the average and peak values of a waveform and can store up to 5000 waveform points per channel and Handheld Two Channel 20 MHz Digital Oscilloscope w/DMM which is an ideal tool for engineers and technicians in the performance of complex measurements and troubleshooting during on-site inspection.

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This compact industrial panel PC, model A0490002, features a fanless, shock-proof design and low power consumption. It runs under Win CE operating system and has a built-in rechargeable battery making the computer panel ideal for embedded applications in environment where power is intermittent. It offers a 4-wire resistive touch screen with a panel resolution of 800x 480, 260 k colours.

With standard communication interfaces including Gigabit Ethernet and isolated RS232/RS485 serial ports, it can be connected to industrial automation PLC, DCS, SCADA and PAC systems for production and factory automation applications. It is equipped with 400 MHz SAMSUNG S3C2416 processor as its computing engine. In addition, it has a 2 GB FLASH and 128 MB SDRAM memory for data storage.

This rugged industrial panel PC belongs to GAO’s family of Other Video Equipment.This line also includes Handheld Multi-Function CCTV Tester which is an ideal device for installers and field technicians to test video, PTZ function, and status of UTP cables conveniently and efficiently.

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This high-speed, high-precision data acquisition module, model A0K10007, is also commonly used in monitoring systems for industrial production processes. It delivers the performance demanded in the fields of Real-time Signal Processing and Digital Image Processing. This module operates at a sampling rate of up to 250 KS/s and offers a 16 K word FIFO memory with three memory signs including full, non-empty and half-full.

This PCI data acquisition module features signal input and output connectors, internal and external clock function of AD and analog input auto-calibration. It provides multiple signal connection modes such as AD Input, Analog Output, Digital Input, Digital Output, Clock and Trigger. It also provides AD continuum, grouping sampling function, and multiple-instrument synchronization.

This high performance PCI data acquisition module belongs to GAO’s family of Data Acquisition products. This line also includes other similar products which can fulfill customers’ demands. This line contains Data Acquisition Board which can be directly inserted into a computer to allow for real-time data acquisition and control applications within the scope of Windows systems, Data Acquisition Module which is also commonly used in monitoring systems for industrial production processes and PCI Synchronous Data Acquisition Board which is an ideal tool for real-time signal processing as well as digital image processing.

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This wireless data transmission terminal device, model A0K30001, is able to realize long-distance communications, wireless communications and Network communications. The data transmission module provides three working modes including on-line forever, idle offline and idle power-off and has an automatic re-connection function. It also offers local and remote graphical interface for configuration and the maintenance and its firmware can be upgraded locally or remotely.

This wireless data transmission module features reliable design with redundant hardware and software and a built-in watchdog. It is capable of 8-channel 16-bit differential isolated analog input and 2-channel 12-bit isolated analog output, 8-channel isolated digital input and 8-channel relay output. This module transfers data to a computer via RS232 or RS485 port.

This high performance wireless data transmission module belongs to GAO’s family of Data Acquisition products. This line also includes other similar products which can fulfill customers’ demands. This line contains Data Acquisition Board which can be directly inserted into a computer to allow for real-time data acquisition and control applications within the scope of Windows systems, Data Acquisition Module which is also commonly used in monitoring systems for industrial production processes and PCI Synchronous Data Acquisition Board which is an ideal tool for real-time signal processing as well as digital image processing.

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This light weight handheld xDSL tester, model A0010004, accurately tests the physical, network and application layers at a high speed. It can be used in “ATUR+PC” emulation mode for testing without an additional ADSL2+/VDSL2 modem or computer. It is capable of Web browsing, Web rate measurement and FTP speed measurement. It confirms whether a line is suitable for xDSL services. Ethernet and cable tests can also be performed.

This tester also functions as a digital multi meter (DMM) to test loop resistance, insulation resistance, capacitance, AC-DC voltage and estimates wire length. It also has PPPoE dial-up function to obtain an IP address and conduct Ping tests including Ping loss test and Ping loopback latency test. The compact tester runs under Windows CE operating system and offers a graphical interface and a large memory capacity of up to 2000 ADSL test records. In addition, it is equipped with an auto-off function to save power, audio and LED status indicators, and a large true color LCD with touch panel.

This easy to operate xDSL tester belongs to GAO’s family of ADSL Testers. This line also includes other similar testers that can fulfill different demands. They are Multi-function ADSL/ADSL2+ Tester which provides multiple test functions including upstream and downstream rate measurements, error counts, modem simulation and PING and Trace testing, Portable xDSL Tester which evaluates line quality, performs PPPoE dial-up, provides Web page browsing and emulates a PC+ Modem in order to test the connection to the ISP and Portable ADSL2+ Tester which is especially useful for installation and maintenance and is suitable for tier-1 ADSL applications.

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This compact digital RF millivoltmeter and frequency counter, model A0230003, is compact, portable and light weight and also consumes little power. It measures sinusoidal signal voltage over a wide frequency range of 10 kHz to 2000 MHz. It is packed with outstanding features including rapid frequency response, a small standing wave coefficient, high sensitivity, accuracy, reliability and high price-to-quality ratio.

This digital RF millivoltmeter and frequency counter belongs to GAO’s family of Logic Analyzers and Generators. The line of products is generally used in designing, testing, troubleshooting, and repairing electronic or electro acoustic devices. This line also includes similar products such as Direct Digital Synthesis (DDS) Function Generator which is designed for use in such applications as communication equipment and electronic components production, DDS Function Generator which uses direct digital synthesis (DDS) to generate different types of electrical waveforms over a wide frequency range of 40 µHz to 5 MHz and DDS Function Generator with Arbitrary Waveform which creates stable output waveforms down to 1mV and provides a sampling rate of 100 Msa/s and a vertical resolution of 8 bit.

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This radio frequency spectrum analyzer, model A0070002, features a small size and light weight. It operates over a wide frequency range of 9 kHz to 3 GHz. The analyzer provides a resolution bandwidth of 100 Hz to 1 MHz at an accuracy of ± 25% (1 MHz) or ± 10% (<1 MHz). It offers a maximum safety level of CW 27 dBm DC Level ± 20 V. Its internal non-volatile memory can store 200 measurement data, which can be downloaded via its RS232 interface.

All RBW/VBW filters and medium frequency/video detectors are digital. This analyzer conforms to third-level equipment standard in GJB3947-2000. The radio frequency spectrum analyzer is equipped with a 6-inch VGA TFT color LCD screen providing clear signal details. In addition, its large capacity rechargeable lithium battery ensures a long operating time of up to 4 hours.

This radio frequency spectrum analyzer belongs to GAO’s family of Telecom Testers and Analyzers. This line features specialized products including Multi-function ADSL/ADSL2+ Tester which provides multiple test functions including upstream and downstream rate measurements, error counts, modem simulation and PING and Trace testing, Multi-functional E1/Datacom Tester which provides various protocol converters with one-way and bi-directional bit-error-rate (BER) test functions and TDR Cable Fault Locator which is ideal for localization of breaks, shorts, poor electric insulation and other faults of various telephone cables, RF cables and coaxial cables.

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This handheld fiber optic OTDR, model C0250001, features a compact size, easy operation, high dynamic range and highly precise measurement. It can be used in both single mode (1310/1550 nm) and multi mode (850/1300 nm) fiber applications. The unique hot key design makes it convenient and quick to conduct measurements and review and analyze test results. It is complete with adaptors for connection to different fiber types. It is also resistant to dust, moisture and shock, which allows it to perform well even in harsh environments.

This fiber optic OTDR provides a wavelength of 1310/1550 nm ± 20 nm for single mode fiber and 850/1300 nm ± 20 nm for multi mode fiber. The event dead zone for single mode fiber is only 3 m and for multi mode fiber is 7 m. It has a large memory capacity allowing it to save up to 300 test curves and can transfer them to a computer via RS-232 or USB port for further analysis, reporting and printing via included software. In addition, it is powered by Ni-MH rechargeable battery or AC adapter for over 3.5 hours of continuous testing operation on a single charge.

This handheld fiber optic OTDR belongs to GAO’s family of OTDRs. Two other products in this line are Multi-function Optical Time Domain Reflectometer which is used for testing in a variety of fiber optic applications including WDM, MAN, FTTH and LAN networks, and Handheld Fiber Optic OTDR which features an extra-short event dead zone of only 1.6 m, a high resolution of 0.125 m, 65 k sampling points and a convenient visible fault location (VFL) function.

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The USB arbitrary waveform generator and frequency counter, model A0210001, generates regular waveforms such as Sine, Square, Triangle, Saw-tooth, TTL, White Noise, Gaussian Noise, Trapezoid, Exponent and AM and FM signals. Parameters such as amplitude, frequency and offset are programmable. The waveform generator and frequency counter can read waveform data files produced by Tektronix oscilloscopes or Tektronix waveform editor software.

The waveform generator and frequency counter operates over a frequency range of 0.1 Hz to 5 MHz at a resolution of 0.01 Hz. It uses DDS technology for high frequency accuracy, high waveform resolution and high reliability. It operates under Windows OS from NT to Vista and Windows 7. Its DAC clock allows for continuous adjustability from 0 to 50 MHz in 0.2 Hz steps. In addition, this generator ships with both SDK and API and can be easily integrated or embedded into other auto-measuring systems.

This bus powered arbitrary waveform generator and frequency counter belongs to GAO’s family of Logical Analyzers and Generators. This line includes Multi-function Logic Analyzer which has the features of a multi-channel oscilloscope and is capable of observing a sizable amount of data and data flow direction control information simultaneously and captures narrow pulse interference information, DDS Function Generator which uses direct digital synthesis (DDS) to generate different types of electrical waveforms over a wide frequency range of 40 µHz to 5 MHz and Digital RF Millivoltmeter and Frequency Counter which measures sinusoidal signal voltage over a wide frequency range of 10 kHz to 2000 MHz.

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This multi-functional E1 BER tester, model A0040007, features self-check and keyboard testing, extensive error and alarm generation, detection and indication. It performs both out-of-service framed and unframed testing. It boasts full-featured measurements of E1, Datacom and protocol analysis. It conducts clock slip measurement, frequency and level measurement as well as manual and auto-timer measurements. Real-time transmit circuit open/short indication is also provided.

This BER tester possesses a large memory capacity and saves/recalls up to 10 user-defined setups and ten sets of test results. It provides smart menu navigation and has a large color LCD screen allowing test results to be clearly displayed. Test results can be uploaded for further analysis and printing via included software which is upgradeable via an integrated RS232C interface. In addition, it has built-in Ni-MH rechargeable batteries and smart charger circuitry (automobile adaptor included) and allows more than 6 hours operation with a single battery charge.

This handheld E1 Bit Error Rate (BER) tester belongs to GAO’s family of E1 BER Testers. Featured products in this line also includes Multi-functional E1/Datacom Tester which is designed for the installation, acceptance testing and daily maintenance of digital networks, Integrated Data Transmission Analyzer which is used for measuring the error rate of data communication and for the analysis of line faults and their causes for the routine maintenance testing of 2M systems, N×64 k communication channels and SDH/PDH Transmission Analyzer which is used for pulse mask analysis, overhead analysis, point analysis and anomaly/defect analysis as well as bit error rate (BER) testing.

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This handheld signal level meter, model A0N00003, features a portable, rugged, handheld design, high-speed measurement and auto-off time setup. It operates over a wide frequency range of 46 to 870 MHz with a resolution bandwidth of 280 kHz ±50 kHz.

This easy-to-operate signal level meter is able to scan 125 channels at the same time and is able to display two channels simultaneously. It offers a level range from 30 to 120 dBµV with an accuracy of ±1.5 dBµV. In addition, the signal level meter is able to operate continuously for more than 5 hours on a single charge.

This handheld CATV signal level meter belongs to GAO’s family of CATV Meters & Instruments. This line also includes High Performance Digital Signal Level Meter which conducts measurements of digital-analog-mixed networks and also performs tilt, C/N, voltage and V/A tests, Portable PCM Channel Analyzer which has functions for measuring PCM voice encoding and decoding performance characteristics and is widely used to measure PCM devices, digital switches, carrier wave communication devices and VoIP devices, TDR Cable Fault Locator which is able to automatically locate and indicate the distance to many kinds of RF cable faults such as short circuits, open circuits or high resistance points.

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This easy-to-use PC-based oscilloscope, model A0120001, operates at a real-time sampling rate of up to 100 MS/s and with a bandwidth of 40 MHz. It combines the functions of an oscilloscope, spectrum analyzer, waveform recorder, signal generator, voltmeter and cymometer. The digital oscilloscope has 23 measurement functions and PASS/FALL checking functions. It has auto, normal and single triggering modes with adjustable triggering levels.

The scope provides FFT spectrum analysis and four adjustable vertical modes including CH1, CH2, Dual and Add. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. Waveforms can be saved in text, MS Word, Excel or graphic files (JPG or BMP) formats under most Windows OS up to Vista. In addition, it is compatible with USB 2.0 and requires no external power.

This 40 MHz USB PC-based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. Featured products in this line includes 60 MHz USB PC-Based Oscilloscope, 100 MHz USB PC Based Oscilloscope, 200 MHz USB PC Based Oscilloscope which is designed to analyze and display the spectrum of a repetitive event and Digital Storage Oscilloscope which integrates a digital oscilloscope, a logic analyzer, a FFT spectrum analyzer, an electronic counter and a clock Jitter analyzer into one device.

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This high performance color video quad processor, model A0410003, provides high-quality split screen output for real-time multiple video channel display, live monitoring or recording purposes. It provides 4 CH video, 1 CH DVR and 2 CH alarm input and 1 CH video, VCR and alarm output. It also delivers high resolution pictures with broadcast quality and has a date and time stamp generator built in.

This color video quad processor supports multiple video display modes including sequence switching, single picture, picture-in-picture, image zoom and freeze frame. Alarm modes include video loss, motion and external alarm input. This color video quad processor exchanges data via a RS232 or RS485 interface.

This high performance video quad processor belongs to GAO’s family of Quad Processors and Video Multiplexers. Similar products in this line include 8 Channel Color Video Quad Processor which provides 8 CH video, 1 CH DVR and 2 CH alarm input and 1CH video and VCR and alarm output, 9 Channel Real Time Color Video Multiplexer which provides high resolution real time video on all 9 channels, 16 Channel Real Time Color Video Multiplexer and CCTV: Color Video Quad Processor. This line of products can be used for schools, homes, factories and traffic surveillance equipment.

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This 9 channel real time video multiplexer, model A0410002, features 50 fields/s in PAL mode and 60 fields/s in NTSC mode, an input of 9 loops BNC, 1.0 Vpp 75 Ω and an output of 1 loop, 1.0 Vpp75 Ω. For VCR, the input is 1.0 Vpp 75 Ω and the output is BNC 1.0 Vpp 75 Ω/S-VHS. It provides synchronous live recording, display and playback capability.

This compact and powerful multiplexer is compatible with RS232 or RS485 interfaces. Display modes include sequential switching; single picture; PiP; 4, 8 or 9 pictures; freeze-frame and zoom. Alarms are generated for signal loss and motion detection. The alarm duration is programmable from 2 to 999 seconds with 4 seconds default. Video resolution is adjustable for each channel individually.

This 9 channel real time video multiplexer belongs to GAO’s family of Quad Processor & Video Multiplexer. Featured products in this line also include 4 Channel Color Video Quad Processor which is suitable for many applications such as security surveillance, industrial monitoring and  multimedia applications where multiple images are required in a limited space, CCTV: Color Video Quad Processor, 8 Channel Color Video Quad Processor, and 16 Channel, Real Time, Color Video Multiplexer.

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This high performance optical power meter, model C0260006, features multi-wavelength precise measurement, simple button operation, real-time clock, absolute and relative power measurement, low voltage warning, auto power off and energy-save design. It provides a wide power measurement range of -50 dBm to 26 dBm and a higher frequency range of 800 nm to 1600 nm than other similar devices. The handheld optical power meter is calibrated over a large number of wavelengths to enable power measurements to be made on a wide range of single mode and multimode fiber optic cable systems.

This optical power meter has a large memory capacity of up to 200 groups of data items and communicates with a computer via USB port for data exchange. It is available for all common connector types including FC, SC, ST, and LC. It is powered by 3.7 V 3000 mAh rechargeable lithium battery that provides more than 30 hours of continuous operation. In addition, this meter can be automatically backlight off within 60 s to save energy.

This handheld optical power meter belongs to GAO’s family of Power Meter. This line also includes Handheld Optical Power Multi Meter which is suitable for construction and maintenance of fiber communications and CATV systems, Handheld PON Power Meter which is a useful tool for the construction and maintenance of the PON networks and Portable Optical Power Meter which is equipped with a single-chip microprocessor, a built-in long wavelength camera probe and newly designed electric rubber switch. GAO’s family has provided the users a lot of featured products with good quality, competitive price and good service and is well accepted by most customers in North America.

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This 40 MHz USB PC based oscilloscope, model A0120001, combines the functions of an oscilloscope, spectrum analyzer, waveform recorder, signal generator, voltmeter and cymometer. The USB oscilloscope operates at up to 100 Ms/s real-time sampling rate at a bandwidth of 40 MHz. It has auto, normal and single triggering modes and the triggering level is adjustable.

This versatile and widely-used oscilloscope has 23 measurement functions and PASS/FALL checking functions. It has FFT spectrum analysis and displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. Waveforms can be saved in text, MS Word, Excel or graphic files (JPG or BMP) formats under most Windows OS up to Vista. In addition, it is compatible with USB 2.0 and requires no external power.

This easy to use PC based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscope. Other products in this line include 100 MHz USB PC Based Oscilloscope which operates at up to 250 MS/s real-time sampling rate at a bandwidth of 100 MHz, Digital Storage Oscilloscope which efficiently solves complicated trigger problems by providing a comprehensive set of triggers such as rising or falling edge, pulse width, delayed, and count and 200 MHz USB PC Based Oscilloscope which is one of the most versatile and widely-used electronic instruments and is designed to analyze and display the spectrum of a repetitive event.

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This portable oscilloscope, model A0120009, operates at a maximum real-time sampling rate of up to 250 MS /s and 100 MHz bandwidth. It combines the functions of an oscilloscope, a spectrum analyzer, a waveform recorder, a signal generator, a voltmeter and a cymometer into one unit. It has 23 measurement functions and PASS/FALL checking functions. It provides auto, normal and single triggering modes and the triggering level is adjustable. The scope also provides four adjustable vertical modes including CH1, CH2, Dual and ADD. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. This oscilloscope also performs FFT spectrum analysis. Its waveform output can be saved in text, MS Word, Excel or graphic (JPG or BMP) formats under most OS from Windows 98 to Windows Vista. In addition, it is compatible with USB 2.0 and requires no external power.

This USB PC based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. Similar products in this line are 40 MHz USB PC Based Oscilloscope, 60 MHz USB PC Based Oscilloscope and 200 MHz USB PC Based Oscilloscope.This line also includes Digital Storage Oscilloscope which integrates a digital oscilloscope, a logic analyzer, a FFT spectrum analyzer, an electronic counter and a clock Jitter analyzer into one device. This line of oscilloscopes is ideal for the maintenance of electronic equipment and laboratory work in fields such as science, medicine, engineering and telecommunications.

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This durable and compact optical laser source, model C0220005, features easy operation, high sensitivity and reliability. It boasts highly accurate measurements and is compatible with other optical instruments. This laser source conducts efficient tests relying on its utilization of automatic power control (APC) and automatic temperature control (ATC) techniques.

Featuring a large LCD screen, sleek design and easy operation, this laser source is ideally suited for field work. It provides optional operating wavelengths of 1310 nm, 1550 nm, 1310/1550 nm, 650/1310/1550 nm, 850/1310/1550 nm, 850/1300 nm, 1490/1310/1550 nm, and 1625/1310/1550 nm. It also offers optional modulation frequencies including CW, 270 Hz, 1 kHz and 2 kHz to meet various requirements. FC, ST and SC adapters are available.

This handheld optical laser source belongs to GAO’s family of Laser Source. Featured products in this line also include Fiber Optic Multimeter which integrates both an optical power meter module and an optical light source module in one unit and performs closed-loop tests by using both modules, Handheld Adjustable Light Source which provides 1 to 4 wavelengths and its output power is adjustable according to customer’s specific need and Handheld Optical Power Multimeter which is suitable for construction and maintenance of fiber communications and CATV systems.

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This data transmission analyzer and E1/T1 BER tester, model A0020004, offers a special remote function to perform real time monitoring. This tester has testing functions for G.703, V.24/RS232, V.35, V.36/RS449, X.21, EIA-530/530A, end-to-end testing, voice and frequency measurement, remote loopback testing, E1 pulse mask, and PING testing.

The data transmission analyzer performs error code testing at the rate of up to 2048 kb/s and offers 2 M online monitoring for routine maintenance, repair and operations monitoring of communication equipment. The measurable electrical level range is -39 to 6 dBm with an accuracy of ±0.3 dBm. It has a large memory capacity of 5000 records and is shipped with a large and backlight color TFT LCD. Powered by 8.4 V/1200 mAh rechargeable lithium battery, this analyzer allows for up to 8 hours of continuous operation.

This multi-functional analyzer belongs to GAO’s family of Datacom Analyzer. Other featured products in this line contain Portable E1/Datacom Transmission Analyzer which is designed for performing comprehensive analysis, measurement and evaluation of telecom networks, SDH/PDH Transmission Analyzer which is used for pulse mask analysis, overhead analysis, point analysis and anomaly/defect analysis as well as bit error rate (BER) testing and Multi-Functional E1/Datacom Tester which provides various protocol converters with one-way and bi-directional bit-error-rate (BER) test functions. GAO has provided lots of testers or readers or analyzers that are ideal for access control, asset tracking and other industries.

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This high performance 8 channel color video quad processor, model A0410005, provides 8 CH video, 1 CH DVR and 2 CH alarm input and 1CH video and VCR and alarm output. It features dual-mode automatic switching PAL/NTSC standard, full-screen real-time display, built-in OSD, clock and color off channel function. The video quad processor includes such alarm modes as video loss alarm, video motion alarm and external alarm. The alarm duration is programmable from 2 to 999 seconds.

This video quad processor provides high-quality split screen output for real-time multiple video channel display, live monitoring or recording purposes. It also delivers high resolution pictures with broadcast quality and has a built in date and time stamp generator. It offers video standard of 50 f/s in PAL mode and 60 f/s in NTSC mode. In addition, it can work perfectly under the power of 12 V DC.

This 8 channel color video quad processor belongs to GAO’s family of Quad Processor & Video Multiplexer. This line also contains other featured processors which can be used in different occasions. One is 16 Channel, Real Time Color Video Multiplexer which is designed to transfer recordings of signals from multiple security cameras onto one cassette and can handle several video signals at one time and splits a monitor into various display areas. Another one is 9 Channel Real Time Color Video Multiplexer which is widely used in security monitoring, highway monitoring, toll station video surveillance system, industrial closed circuit television surveillance and high quality video conferencing.

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This 4 port Gigabit Ethernet switch, model C0330004, converts optical/electrical Ethernet signals between 10/100/1000M UTP ports and 1000M optical fiber ports.

With an auto negotiation function, it allows for UTP ports to auto 10/100/1000M and Full duplex/Half Duplex. It also allows for VLAN and QoS and provides broadcast storm protection. It has 12 G bandwidth which can be transmitted to achieve non-blocking wire-speed.

This 4 port Gigabit Ethernet switch provides IEEE802.3x flow control in full duplex mode and back pressure flow control in half duplex mode. It provides transmission distances of up to 224 m on 50/125μm MMF and 550 m on 62.5/125 μm MMF while on 8/125, 8.7/125, 9/125, 10/125 μm SMF, it offers a transmission distance of up to 100 km. Additionally, it has a 512 kb RAM frame buffer memory.

This 4 port Gigabit Ethernet switch belongs to GAO’s family of Fiber Switches. This line includes a variety of products such as 1000M Dual Port Media Converter which conducts mutual conversion between 1000Base-T twisted pair electrical signal and 1000Base-SX/LX optical signal, 6 Port 10/100Base-TX Ethernet Switch with 1 Port 100Base-FX Uplink and 6 Port 10/100Base-TX Ethernet Switch with 2 Port 100Base-FX Uplink.

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This multi-function ADSL2+ tester, model A0010003, combines multiple testing functions into a single compact device. It efficiently performs line parameter measurements, error counts, line error, digital multi meter (DMM) test functions, modem simulation, ping and trace testing and Web site browsing. It carries out measurements immediately with a simple push of the “Auto Test” key and has a maximum transmission distance of 6.5 km.

This versatile portable ADSL2+ tester is also used as a digital multi-meter to test subscriber telephone connectivity and line parameters. It operates under the Windows™ CE platform and Window’s based software is also provided for test result and setting management; software is upgradable via an Ethernet/USB interface. This easy-to-use ADSL 2+ tester offers auto-off functions for energy-saving and various voice alarms and LED indicators. It is equipped with a large storage volume for test result storage.

This portable ADSL2+ tester belongs to GAO’s family of ADSL testers. Featured product in this line is Multi-function Handheld xDSL Tester which accurately tests the physical, network and application layers at a high speed. The line also includes a wide range of similar products for selection such as Portable xDSL Tester, Pocket Size Handheld ADSL2+ Tester, Multi-function ADSL/ADSL2+ Tester which are designed for testing various xDSL lines including ADSL, ADSL2, ADSL2+, READSL, and VDSL2 and are ideal for ADSL/ADSL2+ network installation, maintenance and fault elimination.

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This portable dual channel digital oscilloscope, model A0110016, is an electronic monitoring device which offers up to 1 GS/s real-time sampling rate and up to 50 GS/s equivalent sampling rate. It has 100 MHz bandwidth and 4 k memory depth per channel. It also has a rise time of 3.5 ns, a vertical sensitivity from 2 mV/div to 5 V/div, and a time base range from 2 ns/div to 50 s/div.

This two channel digital storage oscilloscope features mathematical functions, advanced triggering methods, FFT spectrum analysis and automatic parameter measurements. It provides such advanced triggering modes as edge triggering, video triggering, pulse triggering and delay triggering. The FFT spectrum analysis includes Hanning, Hamming, Blackman and rectangular. Automatic parameter measurements include Vpp, Vamp, Vrms, Vmax, Vmin, Vtop, Vbase, Vavg, Freq, Period, Rise time, Fall time, +Width, -Width, Overshoot, Preshoot, +Duty and -Duty. In addition, this multi-function digital oscilloscope has high/low pass, band pass and band-stop digital filters.

This dual channel oscilloscope belongs to GAO’s family of Portable Digital Oscilloscope. This line contains a series of digital oscilloscopes in different styles. Products which are similar but a little bit specific includes Portable Digital Scope w/FFT which is commonly used for electronic circuit debugging, circuit testing, design and manufacture, education and training, automobile maintenance and testing, 4-channel Mini Digital Oscilloscope which is based on ARM cortex M3 (STM32F103VCT6) 32 bit platform and provides a real-time sampling rate of 72 MSa/s with integrated FPGA and high speed ADC and Portable 2-channel 150 MHz Digital Oscilloscope which has 150 MHz bandwidth and 4 k memory depth per channel.

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This modular designed and hot-pluggable media converter, model C0330005, uses physical layer technology to implement media conversion compliant with IEEE802.3z and IEEE802.3ab standards. It supports two types of media network connections: 1000Base-T and 1000Base-SX/LX. This media converter can conduct mutual conversion between 1000Base-T twisted pair electrical signals and 1000Base-SX/LX optical signals.

The media converter extends the transmission distance of a network from 100 m over copper wires to up to 80 km through optical fiber link. It provides transmission distances of up to 550 m on 50/125 μm MMF and 220 m on 62.5/125 μm MMF, while on SMF it offers a transmission distance of up to 80 km. It also allows for full-duplex and half-duplex transmission modes. In addition, its LED indicator lights fully monitor the convertor’s operational status making observation and diagnoses easy.

This 1000 M dual port media converter belongs to GAO’s family of Fiber Switch which contains five similar but featured products that can be suitable for different requirements. This line includes 2-10/100/1000 M RJ45 & 2 – 1000M SFP Ports Ethernet Switch which has two 10/100/1000M UTP ports and two 1000M SFP sockets, 4-Port 10/100Base-Tx and 1-Port 100Base-Fx Ethernet Switch which has four 10/100M UTP ports and one 100M SFP socket and 6-Port 10/100Base-Tx and 1-Port 100Base-Fx Fiber Ethernet Switch which has six 10/100M UTP ports and one 100M SFP socket.

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This high-performance digital signal level meter, model A0N00010, operates over a wide frequency range of 5 to 870 MHz. It conducts measurements of digital-analog-mixed networks and also performs Tilt, C/N, voltage, MER, BER (bit error rate) and V /A tests. The meter accurately measures the average power of DVB-C digital signals, as well as, frequency power levels.

The signal level meter provides a bandwidth of 0.28 to 9.99 MHz and a signal level measurement range of 30 to 120 dBμV at a level precision of ±1.5 dB. It is able to analyze QAM 32 64 128 256/ITU-TJ.83 Annex A/B/C modulated signals and provides a spectrum analysis span of 6.25, 12.5, 25 and 62.5 MHz. Optional PC toolbox software and constellation diagram display are also available. This meter can be easily connected to a computer via USB and RS232 interfaces.

This portable digital signal level meter belongs to GAO’s family of CATV Meter &Instrument.It is the featured products in this line. This line also includes CATV Analyzer, Handheld CATV/QAM Analyzer, TDR Cable Fault Locator and Portable PCM Channel Analyzer which integrates an analog signal generator/receiver, a selective level meter, a BERT, a signaling generator/receiver, a ring generator/identifier, a Dialer, a DC loop circuit (ICT, OGT), a balanced bridge and a reflecting bridge and other functions into a single instrument. This family of CATV meter & instrument offers GAO’s customers valuable choices. The family is very popular among CATV engineers and technicians.

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This 5-in-1 oscilloscope, model A0120005, integrates a digital oscilloscope, a logic analyzer, a FFT spectrum analyzer, an electronic counter and a clock Jitter analyzer into one device. It supports up to 512 trigger levels and efficiently solves complicated trigger problems by providing a comprehensive set of triggers such as rising or falling edge, pulse width, delayed and count.

The oscilloscope provides a maximum repeating sampling rate of 20 GSa/s and single shot sampling rates of up to 1GSa/s. This oscilloscope has 4M/8M sample data acquisition buffers on each channel. It offers a fast Fourier transformation (FFT) function for bandwidth tests. In addition, it is also compatible of X-Y plot, Multi-Window software, timing state display for logic debug as well as optional DLL libraries.

This digital storage oscilloscope belongs to GAO’s family of USB PC Based Oscilloscope. This line provides a series of multi-featured products to meet a variety of demands. It includes 40 MHz USB PC Based Oscilloscope which is a high performance 8-bit, two-channel computer based USB digital storage oscilloscope, 60 MHz USB PC Based Oscilloscope which operates at up to 150 MS/s real-time sampling rate at a bandwidth of 60 MHz, and 100 MHz USB PC Based Oscilloscope with higher bandwidth.

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Toronto, Canada –

This handheld Gigabit Ethernet tester, model A0060001, combines network testing, data packet capture, traffic generation, cable testing and BER testing into one unit. It is capable of identifying cable faults such as short circuits, open circuits, as well, it detects cable length. It conducts termination mode testing and frame length, frame type and used ratio status. Test tools including port positioning, packet capture and loopback. The tester also has both single and multiple site traffic generation functions. It boasts a large memory capacity for storage of settings and results.

This ergonomic and easy-to-carry Ethernet tester is equipped with a 4.3 in LCD color touch screen and smart navigation menus; results can be shown as texts or graphics. The tester is compliant with IEEE802.3, RFC1242 and RFC2544 standards and can be upgraded via the included software. In addition, it is able to connect with a computer via USB or Ethernet port for data exchange.

This portable Gigabit Ethernet tester belongs to GAO’s family of Network Tester in Telecom Tester and Analyzer. This category can be divided into many fields that can fulfill customers’ different requirements. One line of Telecom Line Tester includes three products: TDR Cable Fault Locator, TDR Cable Fault Locator with large test length and Compact Telecom Line Tester. GAO provides a portfolio of testers and analyzers that is well known all over the world.

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Toronto, Canada –

This 500 MHz, 34-channel logic analyzer, model A0220001, uses advanced large-scale integrated circuits, high-frequency digital circuits, embedded systems and the other advanced technologies. It has the features of a multi-channel oscilloscope and other automatic testing instruments. The logic analyzer also features a variety of digital information capture functions, a large memory capacity and multiple trigger modes.

Its delay function allows it to capture the waveforms prior to or behind the required observation points. The analyzer is capable of observing a sizable amount of data and data flow direction control information simultaneously and captures narrow pulse interference information. It is able to see error messages and locate faults in the source code. The analyzer’s intuitive and flexible displays return dynamic analysis results in binary, decimal, hexadecimal or ASCII format to facilitate debugging. In addition, it has CPLD and FPGA functionality. The analyzer is controlled and powered via USB2.0 interface.

This USB PC-based logic analyzer belongs to GAO’s family of Automotive Testers. This line also includes 4-Channel Automotive Tester/Diagnostic Oscilloscope which is suitable for vehicle power tests, Portable Digital Scope w/FFT which is commonly used for electronic circuit debugging, circuit testing, design and manufacture, education and training, automobile maintenance and testing, Handheld Two Channel 20 MHz Digital Oscilloscope w/DMM and Handheld 2 Channel 60 MHz Digital Oscilloscope w/DMM.

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Toronto, Canada –

This handheld digital oscilloscope, model A0110007, has all of the functionality of a digital multimeter (DMM), such as measurements for voltage, current, resistance, capacitance, and diode and continuity check. It features an auto-scale function, automatic settings function, automatic parameter measurement, multiple wavelength calculation functions and advanced triggering options. It has 60 MHz bandwidth and offers up to 250 MS/s real-time sampling rate at a memory depth of 6 k per channel. It has a rise time of less than 5.8 ns, a vertical sensitivity from 5 mV/div to 5 V/div and a horizontal scale from 5 ns/div to 100 s/div.

Triggering modes such as edge trigger (Normal, Single shot, Auto) and video trigger are provided. The scope communicates with a computer via USB interface. In addition, it provides up to 6 hours continuous operation on a single charge.

This handheld channel digital oscilloscope belongs to GAO’s family of Portable Digital Oscilloscopes. This line also has includes Portable Digital Scope w/FFT which is commonly used for electronic circuit debugging, circuit testing, design and manufacture, education and training, automobile maintenance and testing, Dual Channel Portable 150 MHz Digital Oscilloscope, Handheld 2 Channel 20 MHz Digital Oscilloscope/DMM and other similar products with different bandwidths.

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Toronto, Canada –

This easy-to-install TI DSP emulator, model B0M00003, runs under Windows 98/NT/2000/XP operating systems and is equipped with a standard high-speed USB 2.0 interface and JTAG emulation interface that saves computer resources. It features a compact size, plug-and-play operation, a high operating speed and multi-DSP emulation.

This hot-pluggable TI DSP emulator boasts a high emulating speed and performs real time data exchange (RTDX) with data transfer rates of up to 480 MB/s. It is self-regulated to the DSP voltage of the target board and is capable of preventing the system from crashing and becoming non-rebootable when the power of target board goes off. In addition, it offers flash programming for F28x/F240x/F24x/F20x.

This XDS510 USB 2.0 Enhanced TI DSP Emulator belongs to GAO’s family of TI DSP Emulators &Debuggers. This line of products also includes JTAG Scan Path TI DSP Emulator Pod which supports TI DSP and Microcontrollers with JTAG interface (C2xx, C24x, F240x, F28xx, VC33, C4x, C5x, C54xx, C55xx, C6xxx, C64xx, TMS470, OMAP) and is suitable for debugging hardware, debugging software as well as flash programming, and XDS510 USB Plus JTAG Emulator which is a DSP development tool (DSP emulator) which uses XDS560 JTAG technology to greatly improve its stability and anti-interference capabilities.

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Toronto, Canada –

This handheld Earth Ground Teater, model A0E10004, features basic ground testing methods including 2-pole, 3-pole and 4-pole. When measuring using 2-pole, there is no need for the auxiliary rod. The tester can also measure AC voltage and soil resistivity and can save up to 15 groups of data. It sends a warning signal when results exceed the test range.

This portable and easy-to-operate tester provides a wide resistance measurement range of 0 Ω to 2000 Ω with a high accuracy of ±2% + 2d. This handheld tester is powered by four 1.5 AA alkaline batteries and operates for a long time. In addition, it provides an IP54 protection rating making it suitable for field use.

This handheld Earth Ground Tester belongs to GAO’s family of Earth Ground Testers which includes other similar products in different usages. A featured tester in this unit is Single Clamp Earth Tester which simplifies ground loop testing and enables non-intrusive leakage current measurement. It measures the integrated value of ground resistance and also tests the leakage current of ground wires. Another one is Double Clamp Earth Resistance Tester which is widely used tests soil resistivity and leakage current of grounding systems under different conditions.

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Toronto, Canada –

This 10/100/1000 Base-TX to 1000 Base-FX media converter, model C0310001, converts Optical-Electric Ethernet signals between 10/100/1000M UTP interface (TX) and 1000M optical fiber interface (FX). It complies with IEEE 10/100Base-TX, IEEE 802.3ab 1000Base-T and IEEE 802.3z 1000Base-SX/LX standards.RJ45 port is provided to perform auto-negotiation under full-duplex and half-duplex transmission modes.

This modular design, plug and play media converter supports single-mode and multi-mode fibers with a transmission distance of up to 80 km for single-mode fiber and 550 m for multi-mode fiber. And it provides an optional wavelength of 1310/1550 nm in the single-mode and 850 nm in the multi-mode. It extends the transmission distance through its photoelectric conversion network. Moreover, it is equipped with alarm LED illumination to indicate link failure and status LEDs for easy monitoring of device’s status.

This 10/100/1000 Base-TX to 1000 Base-FX Media Converter belongs to GAO’s Family of 10/100/1000 Media Converter. Another similar product in this line is 1000 Base-TX to 1000 Base-FX Media Converter which converts Optical-Electric Ethernet signals between 1000M UTP interface (TX) and 1000M optical fiber interface (FX) and can work with GAO’s C0340001 chassis system or as a standalone unit.

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Toronto, Canada –

This compact industrial panel PC, model A0490002, features a fanless, shock-proof design and low power consumption. It offers a 4-wire resistive touch screen with a panel resolution of 800x 480, 260 k colours. It runs under Win CE operating system and has a built-in rechargeable battery making the computer panel ideal for embedded applications in environment where power is intermittent.

With standard communication interfaces including Gigabit Ethernet and isolated RS232/RS485 serial ports, it can be connected to industrial automation PLC, DCS, SCADA and PAC systems for production and factory automation applications. In addition, it has a 2 GB FLASH and 128 MB SDRAM memory for data storage.

This rugged industrial panel PC belongs to GAO’s family of Other Video Equipment.This line also includes Handheld Multi-Function CCTV Tester which is an ideal device for installers and field technicians to test video, PTZ function, and status of UTP cables conveniently and efficiently.

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Toronto, Canada –

This high-performance ADSL/ADSL2+ tester, model A0010006, provides multiple test functions including upstream and downstream rate measurements, error counts, modem simulation, and PING and Trace testing. It also delivers digital multi-meter (DMM) functionality to test subscriber telephone connectivity and line parameters.

The tester has a 24 Mb/s downstream rate and an upstream rate of 1.2 Mb/s. It complies with ADSL, ITU G.992.3, ITU G.992.4, ADSL2+ and ITU G.992 Annex A, B, C, Annex L and Annex M line standards. It determines the type of an ADSL line being tested and automatically matches it to the ADSL line standard and then carries out tests accordingly. This portable tester has a maximum transmission distance of 6.5 km.

Test results and line parameter measurements are easily obtained with a push of the “Auto Test” key. Test results can be uploaded, saved and printed through the included software which is upgradeable via an integrated RS-232 interface. The embedded chipset is upgradeable via Ethernet interface for future ADSL standards. Given its compact, handheld design and easy-to-use interface, this ADSL/ADSL2+ tester is also an excellent tool for technician’s field work.

This multi-function ADSL/ADSL2+ tester belongs to GAO’s family of ADSL Testers. A featured product in this line is Portable ADSL2+ Tester. This line also includes other similar ADSL testers such as Multi-function Handheld xDSL Tester, Portable xDSL Tester and Pocket Size Handheld ADSL2+ Tester. This line of testers is ideal for ADSL/ADSL2+ network installation and maintenance.

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Toronto, Canada –

This parallel data acquisition module, model A0K00002, features a small-sized structure, stacked connection, simple bus drive and high accuracy with phase consistency. This instrument is designed with a standard PC104 board card which contains 2 independent programmable gain channels and 3 triggering sources: (software) manual, external and internal triggering.

This parallel data acquisition module is equipped with two high-speed 40 MS/s ADCs with 12 bit A/D resolution and has a memory depth of 4 M/ch which can be extended to 8 M/ch or 16 M/ch. It has a wide sampling rate ranging from 1 k to 40 M with a low inter-channel phase difference of less than 1°. In addition, it is compatible with various operating systems including Windows 95/98/ME and Windows 2000/XP.

This parallel data acquisition module belongs to GAO’s family of PC104 Data Acquisition Module. Another featured product in this line is Parallel Data Acquisition Module model A0K00001, which has similar features and functions with this product and boasts a sampling rate ranging from 1 k to 20 M. It is equipped with demo source code provided for common development platforms to support technical development.

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Toronto, Canada –

This single clamp earth tester, model A0E10001, features easy operation, high accuracy measurement and anti-interference. It measures the integrated value of ground resistance and also tests the leakage current of ground wires. The tester goes beyond the limitations of traditional methods of earth resistance testing as it does not require the disconnection of the ground wire. Earth ground loop testing and continuity testing can be completed without breaking the circuit. This tester offers a wide ground loop resistance range from 0.01 to 1000 Ω with a resolution of 0.001 to 20 Ω at the highest accuracy of ±(1% + 0.01 Ω). It also features automatic self- calibration ensuring correct measurement every time. In addition, the tester is equipped with a 4 bit digital LCD display screen and provides a memory capacity of 50 groups of results.

This handheld single clamp earth tester belongs to GAO’s family of Earth Ground Testers. An advanced product in the family is Double Clamp Earth Resistance Tester. This line also includes Handheld Earth Ground Tester and Portable DC Ground Fault Locator which uses advanced computation methods and fuzzy logic to rapidly and accurately display the insulation level of a tested circuit branch providing an insulation index and waveform. This line of earth ground testers is widely used in detecting reliable ground connections and measuring earth ground resistance.

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Toronto, Canada –

This low power consuming digital RF millivoltmeter and frequency counter, model A0230003, is compact, portable and packed with outstanding features including rapid frequency response, small standing wave coefficient, high sensitivity, accuracy, reliability and high price-to-quality ratio. It also measures sinusoidal signal voltage over a wide frequency range of 10 kHz to 2000 MHz.

This digital RF millivoltmeter and frequency counter belongs to GAO’s family of Logic Analyzer and Cenerator. The line of products also includes DDS Function Generator which is designed for use in communication equipment and electronic components production, Radio Frequency Signal Generator which is widely used in research, development and production testing of AM/FM receivers, civil-band transceivers and radio remote-control toys, and DDS Function Generator with Arbitrary Waveform which creates stable output waveforms down to 1mV and  provides a sampling rate of 100 Msa/s and a vertical resolution of 8 bit.

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Toronto, Canada –

This easy-to-use PCM channel analyzer, model A0050003, integrates an analog signal generator/receiver, a selective level meter, a BERT, a signaling generator/receiver, a ring generator/identifier, a Dialer, a DC loop circuit (ICT, OGT), a balanced bridge and a reflecting bridge and other functions into a single instrument. It features flexible control modes and remote control signaling group is available. Its built-in generator and receiver, analog input and output interfaces work separately with ICT and OGT. The built-in call set-up circuit can set up testing channels directly by dialing on the tester without the use of a telephone.

The analyzer performs equal step frequency spot sequence tests and customized frequency spots and selective frequency measuring on all frequency spots. Users can develop and design voice channel measurement/control systems under a variety of different conditions via USB or Ethernet interface. It also compares measured results with built-in standard ITU-T tolerance masks to evaluate whether the results indicate a pass or fail. Test results can be uploaded to a computer for further analysis and printed via the included software upgraded online.

This portable PCM channel analyzer belongs to GAO’s family of CATV Meters & Instruments. A featured product in this line is High-performance Digital Signal Level Meter which is intended for analog and digital television network construction and maintenance. This line also includes TDR cable fault locator which is able to automatically locate and indicate the distance to many kinds of RF cable faults such as short circuits, open circuits or high resistance points, digital signal level meter, handheld CATV/QAM analyzer which is designed for both digital and analog TV analysis and other similar products.

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Toronto, Canada – GAO Tek Inc.

This handheld Gigabit Ethernet tester, model A0060001, is capable of identifying cable faults such as short circuits, open circuits and cable length. It conducts termination mode testing and frame length, frame type and used ratio status. It provides test tools including port positioning, packet capture and loopback. The tester also has single and multiple site traffic generation function. It boasts a large memory capacity for storage of settings and results. Equipped with a 4.3 in LCD color touch screen and smart navigation menus, this tester shows all test results as texts or graphics. The tester is compliant with IEEE802.3, RFC1242 and RFC2544 standards and can be upgraded via the included software. In addition, it is able to connect with a computer via an external USB or Ethernet port for data exchange. The tester can help the front-line field workers to analyze the network quality and locate the fault rapidly.

This Gigabit Ethernet tester belongs to GAO’s family of Telecom Testers and Analyzers. GAO Tek offers a suite of high quality, yet affordable telecom test instruments such as E1 BER Tester, ADSL tester, Datacom Analyzer, E1 Service Tester,and E1 / Datacom Tester .

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Toronto, Canada –

This multi-function xDSL tester, model A0010004, accurately tests the physical, network and application layers at a high speed. It is an ideal tool for the installation, maintenance and troubleshooting of any xDSL network.

This tester can be used in “ATUR+PC” emulation without an additional ADSL2+/VDSL2 modem or computer. It is capable of Web browsing, Web rate measurement and FTP speed measurement. It confirms whether a line is suitable for xDSL services. Ethernet and cable tests can also be performed. The tester also functions as a digital multi meter (DMM) to test loop resistance, insulation resistance, capacitance, AC-DC voltage and estimates wire length.

Equipped with the PPPoE dial-up function, the tester can obtain an IP address and conduct Ping tests including Ping loss test and Ping loopback latency test. The compact tester runs under Windows CE operating system and offers a graphical interface and a large memory capacity of up to 2000 ADSL test records. In addition, it has an auto-off function to save power, audio and LED status indicators, and a large true color LCD with touch panel.

This xDSL tester belongs to GAO’s family of ADSL Testers. It is one of the featured products in this line. Another featured product in this line is Portable ADSL2+ Tester which provides such test functions as upstream and downstream rate measurements, error counts, modem simulation, PING and Trace testing. This line also includes such ADSL testers as Multi-function ADSL/ADSL2+ Tester, Pocket Size Handheld ADSL2+ Tester and many other similar products.

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Toronto, Canada –

This USB arbitrary waveform generator, model A0210001, operates over a frequency range of 0.1 Hz to 5 MHz at a resolution of 0.01 Hz. It generates regular waveforms such as Sine, Square, Triangle, Saw-tooth, TTL, White Noise, Gaussian Noise, Trapezoid, Exponent and AM and FM signals. Parameters such as amplitude, frequency and offset are programmable. The waveform generator and frequency counter can read waveform data files produced by Tektronix oscilloscopes or Tektronix waveform editor software.

Using DDS technology, it provides high frequency accuracy, high waveform resolution, high reliability and wide software compatibility. This USB arbitrary waveform generator and frequency generator features USB interface and is bus-powered. It is compatible with Windows NT/2000/XP/Vista and Windows 7 operating systems. Using a DAC clock, it operates at 0 to 50 MHz in adjustable steps of 0.2 Hz. It ships with both an SDK and API and can be easily integrated or embedded into other auto-measuring systems.

This arbitrary waveform generator and frequency counter belongs to GAO’s family of Waveform Generators. It is the featured product in this line. This line also includes USB arbitrary function generator which has one channel of 12-bit arbitrary synchronized waveform output, one 6-bit input channel for counter/frequency measurement and an external trigger input.

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Toronto, Canada –

This smart 16 channel real time color video multiplexer, model A0410001, features 50 fields/s in PAL mode and 60 fields/s in NTSC mode, an input of 16 loops BNC, 1.0 Vp-p 75 Ω and an output of 1 loop, 1.0 Vp-p75 Ω. For VCR, the input is BNC 1.0 Vp-p75 Ω/S-VHS and the output is BNC 1.0 Vp-p75 Ω/S-VHS.

This video multiplexer handles several video signals at one time and splits a monitor into various display areas. It provides synchronous display and payback capability. The multiplexer includes such alarm modes as video loss alarm, video motion alarm and external alarm. The alarm duration is programmable from 2 to 999 seconds with 4 seconds default. It offers display modes including sequence switch, single picture, PiP, 4 pictures, 8 pictures, 9 pictures, 13 pictures, 16 pictures, freeze-frame and zoom. In addition, RS232/RS485 interfaces are provided for data transfer.

This smart 16 channel real time color video multiplexer belongs to GAO’s family of Quad Processors & Video Multiplexers. Similar products in this line are 9 Channel Real Time Color Video Multiplexer which is widely used in security monitoring, highway monitoring, toll station video surveillance system, industrial closed circuit television surveillance and high quality video conferencing, 4 Channel Color Video Quad Processor and CCTV:Color Video Quad Processor.

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Toronto, Canada –

This handheld signal level analyzer, model A0N00004, operates over a frequency range of 5 to 870 MHz and provides a level range of 30 to 120 dBμV at a high accuracy of ±1.5 dBuV (indoor temperature) or ± 2.5 dBuV (-10°C to 40°C).

This instrument can test CATV signal levels in both channel (SCAN) and frequency (SPECTRUM) modes. In “SCAN” mode, it can scan up to 125 channels at a speed of 30 channels/min and store signal levels as well as record signal levels in internal memory for later analysis. In “SPECTRUM” mode, it can display spectrums and tests within the frequency range. This handheld analyzer measures CATV TILT, C/N and trunk cable voltage. It has channel plan selection, channel amending, channel sorting and channel editing functions. It also has automatic off function to save power when not in use and stores 24 groups of scanned data (up to 100 channels per group). In addition, it has two RF F-Type input ports and can be powered by both DC 7.2 V/1.4 Ah rechargeable battery and AC 110 V/60 Hz to 220 V/50 Hz (±10%) allowing for continuously operation for longer than 3.5 hours on a single charge.

This handheld signal level analyzer belongs to GAO’s family of CATV Meters & Instruments. A featured product in this line is High-performance Digital Signal Level Meter which is intended for analog and digital television network construction and maintenance. This line also includes TDR cable fault locator which is able to automatically locate and indicate the distance to many kinds of RF cable faults such as short circuits, open circuits or high resistance points, digital signal level meter, PCM channel analyzer, Handheld CATV/QAM Analyzer and some other products.

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Toronto, Canada –

This high-performance digital signal level meter, model A0N00009, operates over a wide frequency range of 5 to 870 MHz. It is able to analyze QAM 32 64 128/ITU-TJ.83 Annex A/B/C modulated signals. It also conducts automatic channel power measurement and MER and BER tests. The signal level meter provides a bandwidth of 0.28 to 9.99 MHz and a signal level measurement range of 30 to 120 dBμV at a level precision of ±1.5 dB. It provides a spectrum analysis span of 6.25, 12.5, 25 and 62.5 MHz. Using spectrum and channel scanning functions, network faults can be easily diagnosed and analyzed using this single instrument. Optional PC toolbox software and constellation diagram display are also available. This meter can be easily connected to a computer via USB and RS232 interfaces.

This digital signal level meter belongs to GAO’s family of CATV Meter &Instrument. A featured products in this line is high performance digital signal level meter. This line also includes Handheld CATV/QAM Analyzer, TDR Cable Fault Locator , and Portable PCM Channel Analyzer. This family of CATV meter & instrument offers GAO’s customers valuable choices. The family is very popular among CATV engineers and technicians.

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Toronto, Canada –

This radio frequency signal generator, model A0230005, features high accuracy, resolution, reliability and offers a wide frequency range of 300 kHz to 300 MHz as well as an output range of -8 to 120 dBµ at a resolution of 0.1 dB. It allows both automatic and manual testing modes. It generates CW, FM (Frequency Modulation), AM (Amplitude Modulation), and FM Stereo modulation signals. It boasts a storage memory of 100 points. This easy-to-use signal generator has optional RS 232C and IEEE-488 (GPIB) interfaces. Using these interfaces, the instrument can be formed into an automatic test system under the control of a host computer together with other instruments.

This multi-function RF signal generator belongs to GAO’s family of Logic Analyzers and Generators. A featured product in this line is Arbitrary Waveform Generator and Frequency Counter. This line also includes DDS Arbitrary Function Generator/Counter, Digital RF Millivoltmeter and Frequency Counter which measures sinusoidal signal voltage over a wide frequency range of 10 kHz to 2000 MHz and Digital Function Generator which has the ability to automatically and repetitively sweep the frequency of the output waveform between two operator-determined limits. The line of products is generally used in designing, testing, troubleshooting, and repairing electronic or electro acoustic devices.

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Toronto, Canada –

This 9 channel real time video multiplexer, model A0410002, provides high resolution real time video on all 9 channels. It features 50 fields/s in PAL mode and 60 fields/s in NTSC mode, an input of 9 loops BNC, 1.0 Vp-p 75 Ω and an output of 1 loop, 1.0 V_p-p75 Ω. For VCR, the input is 1.0 V_p-p75 Ω and the output is BNC 1.0 V_p-p75 Ω/S-VHS.

This compact and powerful multiplexer provides synchronous live, recording, display and playback capabilities. Alarms are generated for signal loss and motion detection. The alarm duration is programmable from 2 to 999 seconds with 4 seconds default. Video resolution is adjustable for each channel individually. This multiplexer is compatible with RS232 or RS485 interfaces. In addition, the display modes include sequence switch, single picture, PiP, 4 pictures, 8 pictures, 9 pictures, freeze-frame and zoom.

This 9 channel real time video multiplexer belongs to GAO’s family of Quad Processor & Video Multiplexer. Similar products in this line are 4 Channel Color Video Quad Processor and 16 Channel Real Time Color Video Multiplexer which is a more advanced product of this family and is designed to transfer recordings of signals from multiple security cameras into one. The line also includes CCTV: Color Video Quad Processor. The family is useful in video surveillance systems that have complex monitor display requirements.

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Toronto, Canada –

Combined with a computer and special battery data analysis software, this battery conductance tester tracks battery decay trends and sends an alarm in advance of problems.

This portable battery conductance tester, model A0E30001, tests the battery voltage and conductance online and displays and records multiple groups of batteries’ voltage, conductance, and connecting strip resistance. It offers voltage test ranges from 0.000 to 25.000 V at a precision of ±0.2% rdg ± 6 dgt and conductance test range from 100 to 19990 S at a precision of ±0.5% rdg ± 6 dgt. This battery conductance tester has a large memory capacity which stores up to 999 groups of battery parameters with a maximum of 500 cell battery per group. Test results can be uploaded to a computer by SD card for further analysis. In addition, it is powered by a 10.8 V, 2000 mAh rechargeable lithium battery.

This portable battery conductance tester belongs to GAO’s family of Electrical Testers.This line includes a variety of testers such as Earth Ground Testers family which are ideal tools for utility engineers or technicians, electrical contractors or earth ground professionals , Automotive Testers family which include 4-Channel Automotive Tester/Diagnostic Oscilloscope,  Multi-function Logic Analyzer, Portable Digital Scope w/FFT and some other products.

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Toronto, Canada –

This full-featured E1/Datacom tester, model A0020006, features a rugged and handheld design, simple operation and real-time clock. It performs channel tests, alarm analysis, fault location and signal analysis. It has E1 bit error rate testing capability and offers out-of-service BER testing, in-service framed and unframed testing, round trip delay measurement, APS delay measurement, frequency, clock slip and level measurement. It also provides various protocol converters with one-way and bi-directional bit-error-rate (BER) test functions.

The Datacom testing function allows it to carry out ASYNC BER testing, SYNC BER testing, SYNC clock source and sense selection, handshaking signals control and monitoring. This tester also has the functions of octet timing control and monitoring, manual and auto-timer measurement, ITU-T G.821, G.826, and M.2100 performance analysis and self-check and keyboard testing.

The portable E1/Datacom tester is equipped with a high resolution backlit LCD and offers smart navigation menu. It is able to save and recall up to 10 user-defined setups and 10 sets of results. The test results can be uploaded, conserved and printed through the included software which is upgraded via an integrated RS232C interface. In addition, it is able to work continuously for up to six hours on a single charge.

This easy-to-use E1/Datacom tester belongs to GAO’s family of E1/Datacom Testers. A featured product in this line is Portable E1/Datacom Transmission Analyzer which is designed for performing comprehensive analysis, measurement and evaluation of telecom networks. The two testers are very popular among telecom test engineers due to its multiple functions, high portability and reliable performance. The family of E1/Datacom tester offers its customers valuable choices.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This handheld signal level meter, model A0N00003, operates at a wide frequency range of 46 to 870 MHz with a resolution bandwidth of 280 kHz ±50 kHz. It features a portable, rugged and handheld design, high-speed measurement and auto-off time setup.

This easy-to-operate signal level meter tests CATV signal levels in both channel and frequency modes and measures CATV TILT, C/N and trunk cable voltage effectively and accurately. This signal level meter is able to scan 125 channels at the same time and has the ability to display two channels simultaneously. It offers a level range from 30 to 120 dBµV with an accuracy of ±1.5 dBµV. In addition, the signal level meter is able to operate continuously for more than 5 hours on a single charge.

This user-friendly signal level meter belongs to GAO’s family of CATV Meters & Instruments. A featured product in this line is High-performance Digital Signal Level Meter which is intended for analog and digital television network construction and maintenance. This line also includes Digital Signal Level Meter which is specially designed for use in the maintenance of digital, analog, FM or bilateral networks, Handheld CATV/QAM Analyzer, TDR Cable Fault Locator and Portable PCM Channel Analyzer.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada –

This portable DC ground fault locator, model A0E10003, features a high-precision test clamp, a high signal sampling resolution of up to 0.1 mA and direct current clamp meter. It uses advanced computation methods and fuzzy logic to rapidly and accurately display the insulation level of a tested circuit branch providing an insulation index and waveform.

This easy-to-operate DC ground fault locator has a greatly enhanced detection range and anti-jamming capability through efficient processing of a variety of signals. It not only focuses on performing fault testing for indirect grounding, non-metal grounding, loop grounding, positive and negative grounding, positive and negative balance grounding and multipoint grounding in DC systems efficiently, but also accurately displays system voltage, voltage to ground and ground resistance. It also detects sensitive ground leakage and indicates direction of the ground point. In addition, an insulation alarm threshold value can be set by the user.

This high performance portable DC ground fault locator belongs to GAO’s family of Earth Ground Testers. This line also includes  Double Clamp Earth Resistance Tester, Single Clamp Earth Tester, and Handheld Earth Ground Tester which is an ideal tool for utility engineers or technicians, electrical contractors or earth ground professionals. This line of earth ground testers is widely used in detecting reliable ground connections and measuring earth ground resistance.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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Toronto, Canada –

This portable oscilloscope, model A0120009, operates at a maximum real-time sampling rate of up to 250 MS /s and 100 MHz bandwidth. It combines the functions of an oscilloscope, a spectrum analyzer, a waveform recorder, a signal generator, a voltmeter and a cymometer into one unit. It has 23 measurement functions and PASS/FALL checking functions. It provides auto, normal and single triggering modes and the triggering level is adjustable. The scope also provides four adjustable vertical modes including CH1, CH2, Dual and ADD. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. This oscilloscope also performs FFT spectrum analysis. Its waveform output can be saved in text, MS Word, Excel or graphic (JPG or BMP) formats under most OS from Windows 98 to Windows Vista. In addition, it is compatible with USB 2.0 and requires no external power.

This USB PC based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. Similar products in this line are 40 MHz USB PC Based Oscilloscope, 60 MHz USB PC Based Oscilloscope and 200 MHz USB PC Based Oscilloscope.This line also includes Digital Storage Oscilloscope which integrates a digital oscilloscope, a logic analyzer, a FFT spectrum analyzer, an electronic counter and a clock Jitter analyzer into one device. This line of oscilloscopes is ideal for the maintenance of electronic equipment and laboratory work in fields such as science, medicine, engineering and telecommunications.

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Toronto, Canada –

This TDR cable fault locator, model A0080002, features fully automatic and manual testing functions, automatic balance and gain adjustment. The TDR cable fault locator also has the functions of Megohmeter and ohmmeter.

Using pulse reflection testing methods, the cable fault locator provides a wide full-automatic measurement range of 0 to 8 km and offers the testing accuracy of 1 m for measurement range less than 2 km and 8 m for measurement range more than 2 km. It also provides a vast pulse width of 60 ns to 10 μs and a testing dead zone of 0 m. While utilizing bridge testing method, it offers a poor insulation resistance of 0 to 30 MΩ and a full testing length of 9999 m. In addition, this cable fault locator is able to store ten test waveforms and has a large LCD screen with backlight for clear display of results.

This small size cable fault locator belongs to GAO’s family of Telecom Line Testers. Another similar product in this line is small size cable fault locator which has been widely used in communication maintenance, project construction and integrated cabling.This line also includes Compact Telecom Line Tester used for line maintenance and construction and Cable Fault Locator which utilizes advanced micro-electronics technology and is designed to accurately locate fault points such as breaks, shorts, grounding, defective insulation or poor contact in telecommunication cable. The testers in this line are very popular among field engineers as a result of their testing accuracy, functionality, portability and affordability.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada –

This digital function generator, model A0230001, features variable DC offset control, high resolution, INT/EXT AM/FM modulation, LIN/LOG sweep mode and Gate Controlled Voltage (GCV) output for synchronization. It operates at a frequency range of 0.3 Hz to 3 MHz or 0.5 Hz to 5 MHz. It has an external voltage controlled frequency (VCF) function, duty cycle control with signal inversion capacity, two-step and variable attenuation and a built-in 6 digit counter with INT/EXT functions up to 100 MHz. The function generator offers various means of output waveform modulation including sine, triangle, square, ramp, TTL and COMS output waveforms. In addition, it has the ability to automatically and repetitively sweep the frequency of the output waveform between two operator-determined limits.

This user-friendly digital function generator belongs to GAO’s family of Logic Analyzers and Generators. A featured product in this line is Arbitrary Waveform Generator and Frequency Counter, This line also includes Digital RF Millivoltmeter and Frequency Counter , Radio Frequency Signal Generator, and DDS Arbitrary Function Generator/Counter which utilizes VFD (visible vacuum fluorescent) techniques to create stable and accurate output signals with a wide selection of low distortion standard and arbitrary waveforms.

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Toronto, Canada –

This 4-channel automotive diagnostic oscilloscope, model A0E20001, has vehicle diagnosis functions; more than 20 kinds of automatic measurement functions, automatic cursor tracking measurements, as well as, built-in fast Fourier transform (FFT) spectrum analysis.It operates at 60 MHz and offers a maximum real-time sampling rate of up to 200 MS/s in single channel mode and 100 MS/s in dual channel mode. This oscilloscope provides a vertical resolution of 8 bits/channel and a time base range from 5 ns/div to 1000 s/div. It also has acquisition modes including real-time sampling and roll modes with a buffer size from 10 k to 16 M samples.

Advanced trigger types including edge trigger and pulse trigger are provided and trigger modes such as auto, normal and single are included. This oscilloscope also has addition, subtraction, multiplication and FFT mathematic functions. It is powered directly from the USB port of a computer, so this kit can be used either in the workshop or on the road to test and measure virtually all of the electrical and electronic components and systems in motor vehicles. In addition, it is compatible with OS from Windows NT to Windows 7.

This 4-channel automotive diagnostic oscilloscope belongs to GAO’s family of Automotive Testers. This line of testers is ideal for automotive tests and offers GAO’s customers valuable choices. This line also includes Handheld 2 Channel 20 MHz Digital Oscilloscope w/DDM, Handheld 2 Channel 60 MHz Digital Oscilloscope w/DDM, Portable Digital Oscilloscope w/FFT, and Multi-Function Logic Analyzer which is capable of simultaneously observing a sizeable amount of data and data flow direction control information.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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Toronto, Canada –

This high-performance digital signal level meter, model A0N00010, operates over a wide frequency range of 5 to 870 MHz. It conducts measurements of digital-analog-mixed networks and also performs Tilt, C/N, voltage, MER, BER (bit error rate) and V /A tests. The meter accurately measures the average power of DVB-C digital signals, as well as, frequency power levels.

The signal level meter provides a bandwidth of 0.28 to 9.99 MHz and a signal level measurement range of 30 to 120 dBμV at a level precision of ±1.5 dB. It is able to analyze QAM 32 64 128 256/ITU-TJ.83 Annex A/B/C modulated signals and provides a spectrum analysis span of 6.25, 12.5, 25 and 62.5 MHz. Optional PC toolbox software and constellation diagram display are also available. This meter can be easily connected to a computer via USB and RS232 interfaces.

This portable digital signal level meter belongs to GAO’s family of CATV Meter &Instrument.It is the featured products in this line. This line also includes CATV Analyzer, Handheld CATV/QAM Analyzer, TDR Cable Fault Locator and Portable PCM Channel Analyzer which integrates an analog signal generator/receiver, a selective level meter, a BERT, a signaling generator/receiver, a ring generator/identifier, a Dialer, a DC loop circuit (ICT, OGT), a balanced bridge and a reflecting bridge and other functions into a single instrument. This family of CATV meter & instrument offers GAO’s customers valuable choices. The family is very popular among CATV engineers and technicians.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada –

This handheld digital oscilloscope, model A0110007, has all of the functionality of a digital multimeter (DMM), such as measurements for voltage, current, resistance, capacitance, and diode and continuity check. It features an auto-scale function, automatic settings function, automatic parameter measurement, multiple wavelength calculation functions and advanced triggering options. It has 60 MHz bandwidth and offers up to 250 MS/s real-time sampling rate at a memory depth of 6 k per channel. It has a rise time of less than 5.8 ns, a vertical sensitivity from 5 mV/div to 5 V/div and a horizontal scale from 5 ns/div to 100 s/div.

Triggering modes such as edge trigger (Normal, Single shot, Auto) and video trigger are provided. The scope communicates with a computer via USB interface. In addition, it provides up to 6 hours continuous operation on a single charge.

This handheld channel digital oscilloscope belongs to GAO’s family of Portable Digital Oscilloscopes. This line also has includes Portable Digital Scope w/FFT which is commonly used for electronic circuit debugging, circuit testing, design and manufacture, education and training, automobile maintenance and testing, Dual Channel Portable 150 MHz Digital Oscilloscope, Handheld 2 Channel 20 MHz Digital Oscilloscope/DMM and other similar products with different bandwidths.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This compact E1 Bit Error Rate (BER) tester, model A0040007, features self-check and keyboard testing, extensive error and alarm generation, detection and indication. It performs both out-of-service framed and unframed testing. It boasts full-featured measurements of E1, Datacom and protocol converter and conducts clock slip measurement, frequency and level measurement as well as manual and auto-timer measurement. Real-time transmit circuit open/short indication is also provided.

Test results can be uploaded, analyzed and printed via included software which is upgradeable via an integrated RS232C interface. This BER tester possesses a large memory capacity and saves/recalls up to 10 user-defined setups and ten sets of test results. It provides smart menu navigation and has a large color LCD screen allowing test results to be displayed clearly. In addition, it has built-in Ni-MH rechargeable batteries and smart charger circuitry (automobile adaptor included) and allows more than 6 hours operation with a single battery charge. So it is an ideal device for fast problem resolution, E1 PCM line access, maintenance and acceptance testing.

This E1 Bit Error Rate (BER) tester belongs to GAO’s family of E1 BER Testers.This E1 Bit Error Rate (BER) tester is one of the featured products in this line, another one is portable E1/Datacom transmission analyzer which is designed for performing comprehensive analysis, measurement and evaluation of telecom networks. This line also includes E1/T1 BER Tester and Data Transmission Analyzer, SDH/PDH Transmission Analyzer which is designed for field use in analysis and maintenance of E1 data transmission services, and other similar products.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This radio frequency spectrum analyzer, model A0070002, operates over a wide frequency range of 9 kHz to 3 GHz. It uses locked–phase local and all–digitized medium frequency processing technologies. The analyzer provides a resolution bandwidth of 100 Hz to 1 MHz at an accuracy of ± 25% (1 MHz) or ± 10% (<1 MHz). It offers a maximum safety level of CW 27 dBm DC Level ± 20 V. Its internal non–volatile memory can store 200 measurement data, which can be downloaded via its RS232 interface.

The radio frequency spectrum analyzer is equipped with a 6-inch VGA TFT color LCD screen providing clear signal detail. In addition, its large capacity rechargeable lithium battery ensures a long operating time about 4 hours when fully-charged.

This radio frequency spectrum analyzer belongs to GAO’s family of Other Testers. This line also includes high performance PCM channel analyzer which performs tests for level, variation of gain with frequency, variation of gain with input level, quantizing distortion, idle channel noise, crosstalk, return loss and longitudinal conversion loss, and high performance transmission line/antenna analyzer which is commonly used in broadcast television, CATV, GPS, GSM/PCS, microwave relay, satellite communications and radar.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

Integrating a generator and receiver into a single unit this PCM channel analyzer, model A0070001, performs tests for level, variation of gain with frequency, variation of gain with input level, quantizing distortion, idle channel noise, crosstalk, return loss and longitudinal conversion loss. It provides both auto and manual measurement modes and performs multi-task operations which allows for simultaneous testing and reviewing of previous records. The PCM channel analyzer also performs end to end and loop-back tests. This analyzer provides a signal frequency range of 100 to 4000 Hz and an output level range of 6 to -61 dBm0.

This PCM channel analyzer has a storage capacity of up to 60 groups of measurement results and configurations. It compares the measured results with built-in standard ITU-T tolerance masks and evaluates whether the results indicate a pass or fail. Test results are displayed graphically and can be uploaded to a computer for further analysis, filing and printing via embedded software which can be upgraded online.

This PCM channel analyzer belongs to GAO’s family of Other Testers. This line also includes Radio Frequency (RF) Spectrum Analyzer which is used to install, test, troubleshoot, analyze and optimize wireless networks in telecommunications, broadcasting and CATV, and High Performance Transmission Line/Antenna Analyzer which is commonly used in broadcast television, CATV, GPS, GSM/PCS, microwave relay, satellite communications and radar.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This colour video quad processor, model A0410003, detects motion within 48 areas with an adjustable sensitivity of 256 levels. It will automatically display the picture and raise an alarm when motion is detected.

The video quad processor allows for both single video mode and auto switch PiP mode. In PiP mode, three sub-window modes can be selected. It features duplex operation with VCR playback and is compatible with both PAL and NTSC modes.

The video display modes include sequence switch, single picture, quad picture, PiP, Zoom and freeze-frame functions while the alarm mode includes video loss alarm, video motion alarm and external alarm.

This high performance video processor belongs to GAO’s family of Quad Processors and Video Multiplexers. Another similar product in this line is 204-01B. This line also includes 16 Channel, Real Time, Color Video Multiplexer and 9 Channel Real Time Color Video Multiplexer. This line of products can be used for schools, homes, factories and traffic surveillance equipment.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This comprehensive telecom line tester, model A0080003, efficiently detects line errors and performs last number dialed and caller ID display, twisted pair as well as multi-line test testing. It has an insulation test range of 0 to 40 MΩ at a maximum distance of 2 km. It provides FSK and DTMF which meets the GB/T 15279-94 standard. The line tester is fitted with a large high resolution LCD screen to display line voltage and insulation test results. It ships with a chargeable 9 V Ni-MH battery and features low voltage warning, auto power off and energy-saving design.

This compact telecom line tester belongs to GAO’s family of Telecom Line Testers. This line also includes communication cable fault tester which is widely used by technicians to accurately locate faults in the field, for acceptance and maintenance of lines, inspection of cable electrical characteristics and detection of faults such as breakage, misconnection, water absorption, and poor insulation, and small size cable fault locator which performs fault distance location, pulse testing, cable line fault testing, wave shape comparison and data record testing.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada –

This parallel data acquisition card, model A0K10003, offers four parallel channels with an independent 53 MS/s 12-bit A/D converter and four independent programmable gain amplifiers for each channel. It boasts a maximum sampling depth of 16 MS/s per channel.

The data acquisition card features high accuracy with phase consistency. The voltage signal acquisition ranges from ±1 V to ±10 V and the maximum sampling rate is up to 50 MS/s. The card has many triggering sources including software (manual), internal and external triggering. Moreover, it features dynamic download and remote upgrade service and cascades multiple channels for system integration.

This parallel data acquisition card belongs to GAO’s family of PCI Data Acquisition Cards. A similar product in this line is A0K10004 which provides a maximum sampling rate of up to 50 Ms/s. This line also includes A0K10002 which boasts a maximum sampling depth of 16 MS/s per channel. This family provides ideal solution for the formation of multi-channel virtual instrument systems.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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Toronto, Canada –

This plug and play 10/100Base-TX to 100Base-FX media converter, model C0320001, converts 10/100Mbps 10BASE-T/100BASE-TX Fast Ethernet twisted-pair signals to 100BASE-FX Fast Ethernet fiber signals. It uses 1310 nm wavelength in multi-mode and 1310 nm, 1550 nm in single-mode. It complies with IEEE802.3 (10BASE-T) and IEEE802.3u (100BASE-TX/FX) standards.

Half-duplex and full-duplex operations are selectable. In full duplex mode, this converter has the ability to transmit up to 2 kilometers for multi-mode fiber and up to 120 kilometers for long-haul single mode fiber between a LAN switch, file server and another networking device. It is also available in single fiber WDM versions. It is FCC Class A & CE approved. In addition, this media convertor is equipped with an RJ-45 port and a fiber optic ST or SC or WDM port, allowing it to quickly integrate a 10/100Base-TX network into a 100Base-FX (fiber) network.

This high performance media converter belongs to GAO’s family of 10/100M media converters. Another similar product in this line is 10/100Base-TX to 100Base-FX Media Converter with LFP Function which enhances the integrity and conformity of the TP-Fiber linking to improve the maintainability of the network. This line also includes 1000M Fiber Optic Network Interface Card and 100BASE-FX Fiber PCI Network Interface Card which is suitable for use in applications where the access to information point distance is over 100 m.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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Toronto, Canada –

It combines network testing, data packet capture, traffic generation, cable testing and BER testing into one unit. It is widely used in BER testing of layer1, layer2, layer3, and RFC-2544. It can help the front-line field workers to analyze the network quality and locate the fault rapidly.

This handheld Gigabit Ethernet tester, model A0060001, is capable of identifying cable faults such as short circuits, open circuits and cable length. It conducts termination mode testing and frame length, frame type and used ratio status. Test tools including port positioning, packet capture and loopback are provided. The tester also has single and multiple site traffic generation function. It boasts a large memory capacity for storage of settings and results.

Equipped with a 4.3 in LCD color touch screen and smart navigation menus, this tester shows all test results as texts or graphics. The tester is compliant with IEEE802.3, RFC1242 and RFC2544 standards and can be upgraded via the included software. In addition, it is able to connect with a computer via an external USB or Ethernet port for data exchange.

This portable Gigabit Ethernet tester belongs to GAO’s family of Network Testers. Another product in this line is A0060002, a high-performance network tester integrating the functionality of both a Time Domain Reflectometer (TDR) and a Digital Multi-Meter (DMM), and is designed for network layer testing and incorporates such functions as Ping, Ipconfig, Tracert and Route.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada –

This parallel data acquisition card, model A0K10002, offers four parallel channels with an independent 20 MS/s 12-bit A/D converter and four independent programmable gain amplifiers for each channel.

The data acquisition card features high accuracy with phase consistency. It boasts a maximum sampling depth of up to 16 MS/s per channel and refined sampling rate from 100 S/s to 20 MS/s. The voltage signal acquisition ranges from ±100 mV to ±20 V. The card has triggering sources including software (manual), internal and external triggering. In addition, it features dynamic download and remote upgrade service and cascades multiple channels for system integration.

This parallel data acquisition card belongs to GAO’s family of PCI Data Acquisition Cards. A more advanced and higher-end model in this line is A0K10003 which provides a maximum A/D sampling rate of 50 Ms/s, and lower-end model in the family is A0K10004. This family provides ideal solution for the formation of multi-channel virtual instrument systems.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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Toronto, Canada –

This easy-to-use cable fault locator, model A0080001, features a low voltage warning, automatic power off for saving energy and automatic fault distance location without manual intervention. It performs fault distance location, pulse testing, cable line fault testing, wave shape comparison and data record testing. It offers a vast impulse width range from 30 ns to 3 μs and provides a VOP range from 50 to 300 m/μs. It also has a wide measurement range from 1 to 6000 m with a high resolution of 20 cm and a broad gain modulation range from 1 to 10 dB.

This cable fault locator has a fast sampling rate of up to 500 kHz and provides both auto and manual measurement modes. In auto measurement mode, it features a short dead zone test distance of less than 1 m; in manual measurement mode, the dead zone test distance is less than 15 m.

The locator also tests the line for breaks and shorts and circuit faults on twisted-pair cables, data cables, high frequency cables and coaxial cables. In addition, its built-in 7.2 V rechargeable lithium battery allows for over 12 hours of continuous operation.

This small size cable fault locator belongs to GAO’s family of Telecom Line Testers. Another similar product in this line is Communication Cable Fault Tester which integrates the functions of an OTDR, ohmmeter, megohmmeter and automatic bridge into one unit. This line also includes Compact Telecom Line Tester used for line maintenance and construction. The testers in this line are very popular among field engineers as a result of their testing accuracy, functionality, portability and affordability.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This parallel data acquisition module, model A0K00002, is equipped with two high-speed 40 MS/s ADCs with 12 bit A/D resolution. It features a small-sized structure, standard PC104 board card design, stacked connection and simple bus drive.

The data acquisition card also features high accuracy with phase consistency .It includes two independent programmable gain channels and three triggering modes which are manual, external and internal. It allows for quick, easy data acquisition and control to be carried out using a computer. Demo source code is provided for common development platforms to support technical development.

This data acquisition board boasts a wide sampling rate ranging from 1 k to 40 M with a low inter-channel phase difference of less than 1°. In addition, it has a memory depth of 4 M/ch which can be extended to 8 M/ch or 16 M/ch.

This parallel data acquisition module belongs to GAO’s family of PC104 Data Acquisition Modules. Another similar product in this line is parallel data acquisition module which allows for quick and easy parallel data acquisition and time-phase sensitive acquisition to be carried out using a computer.

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This real time digital video recorder, model A0420002, can support up to 16 cameras and can be integrated into your current security system. It is embedded with high performance video processing chips and an embedded Linux system. This professional security device utilizes advanced H.264 video compression algorithms to achieve for excellent video quality while minimizing file size and increasing network transfer speeds.

Using integrated alarm I/O, it sends out an alarm to notify the surveillance administrator when detecting an event such as motion detection. Recordings are compatible with NTSC or PAL format. It provides 25 F/S/CH (PAL) and 30 F/S/CH (NTSC) frame display rate. For video recording, it features 16 channel inputs (BNC) and 2 channel outputs (1BNC and 1VGA), and the data is searchable by event, date, time and channel. In regard to audio recording, it features 16 channel synchronous inputs and 1 channel synchronous output.

It is compliant with multiple protocols such as DDNS, TCP/IP, and DHCP and offers backup modes including CD/DVD-RW or USB. In various surveillance applications via RS-485 interface, this DVR is capable of controlling most types of PTZ protocols. In addition, it can be not only controlled via front panel and remote controller, but also be operated by USB mouse.

This DVR belongs to GAO’s family of Digital Video Recorders (DVRs).This line of DVRs includes a variety of DVRs featuring different channels such as 4 Channel Digital Video Recorder which provides real time recording and PTZ control and 8CH Digital Video Recorder.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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Toronto, Canada –

This rugged industrial panel PC, model A0490002, runs under Win CE operating system and features a built-in rechargeable battery. It offers a 4-wire resistive touch screen with the panel resolution of 800 × 480, 260 k colors.

Featuring standard communication interfaces including Gigabit Ethernet and isolated RS232/RS485 serial ports, it can be connected to industrial automation PLC, DCS, SCADA and PAC systems for production and factory automation applications.

The compact industrial panel PC also features a fanless, shock-proof design and low power consumption. In addition, it has a 2 GB FLASH and 128 MB SDRAM memory for data storage. The computer panel is ideal for embedded applications in environments where power is intermittent.

This rugged industrial panel PC belongs to GAO’s family of Other Video Equipment. This line also includes a Handheld Multi-Function CCTV Tester which is an ideal device for installers and field technicians to test video, PTZ function, and status of UTP cables conveniently and efficiently.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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Toronto, Canada –

GAO Tek Inc.’s E1/Datacom tester, model A0020006, wins much praise from the users for its high performance and fine quality. This Datacom tester has E1 bit error rate testing capability and offers out-of-service BER testing, in-service framed and unframed testing, round trip delay measurement, APS delay measurement, frequency, clock slip and level measurement. The Datacom testing function allows it to carry out ASYNC BER testing, SYNC BER testing, SYNC clock source and sense selection, handshaking signals control and monitoring. This versatile E1/Datacom tester also shows high capability in octet timing control and monitoring, E1 frame data monitoring, ITU-T G.821, G.826, and M.2100 performance analysis, self-check and keyboard testing.

The portable E1/Datacom tester is equipped with a high resolution backlit LCD and offers smart navigation menu. Extensive error and alarm generation, detection and indication make the testing work more easy and efficient to be completed. It is able to save and recall up to 10 user-defined setups and 10 sets of results; test results can be uploaded, conserved and printed through the included software. The embedded software is upgradable via an integrated RS232C interface.

This easy-to-use multi-functional E1/Datacom tester belongs to GAO’s family of E1/Datacom Testers. The family also includes a featured product Portable E1/Datacom Transmission Analyzer which is designed for performing comprehensive analysis, measurement and evaluation of telecom networks. The two testers are very popular among telecom test engineers due to its multiple functions, high portability and reliable performance.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This multi-function E1/T1 BER tester and data transmission analyzer, model A0020004, performs error code testing at the rate of 50 b/s to 2048 kb/s and offers 2M online monitoring for routine maintenance, repair and operations monitoring of communication equipment. It offers a special remote monitoring function to perform real time monitoring through software. The measurable electrical level range is -39 to 6 dBm with an accuracy of ±0.3 dBm.

This E1/T1 bit error rate tester and data transmission analyzer integrates V series data interfaces, EIA-530/530A and RS485/RS422 interfaces for data exchange. Its 8.4 V/1200 mAh rechargeable lithium battery allows for up to 6 hours of continuous operation. In addition, the BER tester and data transmission analyzer has a large memory capacity of 10000 pieces for nine independent records.

This E1/T1 BER tester and data transmission analyzer belongs to GAO’s family of E1 BER Testers. A featured product in this line is Multi-functional E1/Datacom Tester which is designed for the installation, acceptance testing and daily maintenance of digital networks. This line also includes SDH/PDH Transmission Analyzer which is used for pulse mask analysis, overhead analysis, point analysis and anomaly/defect analysis as well as bit error rate (BER) testing, Integrated Data Transmission Analyzer and other similar products.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This portable power quality analyzer, model A0E40001, measures unbalanced degree of three-phase four-line power systems. It features power factor analysis, harmonic analysis, and load balance analysis functions and also offers powerful software for analysis of long-term running state of electric grids. This high performance power quality analyzer provides real time test data display which is presented in a simple and powerful format and has a large memory capacity of up to 4 MB for long-term data collection and monitoring of electric grids. Test data can be downloaded for further analysis through its USB interface.

With this portable power quality analyzer on hand, any complex power quality problem will be easily and rapidly troubleshot. High maintenance expenses and costly downtime and equipment damage can also be avoided with the reliable power quality analyzer.

This portable power quality analyzer belongs to GAO’s family of Electrical Testers. This line of products also includes Earth Ground Testers such as Double Clamp Earth Resistance Tester, Automotive Testers such as 4-Channel Automotive Tester/Diagnostic Oscilloscope, and Battery Testers such as Battery Conductance Tester which is designed to accurately distinguish the health of each cell of a battery in just seconds.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada –

This easy-to-use E1/datacom transmission analyzer, model A0020003, performs E1 frame data monitoring and analysis, dual E1 channel testing, loop delay, APS delay, pulse measurement, jitter measurement, and signal level measurement. It provides full-featured measurements to E1, Datacom and unique IP PING testing from Datacom. Test results can be uploaded, conserved and printed through the included software via USB interface. This analyzer can store up to 10 user-defined configurations and 10 groups of test results.

Powered by built-in Li-ion rechargeable batteries, it provides 4 hours of continuous operation. It has a large, high-resolution, contrast-adjustable, backlit LCD with smart menu navigation. Its portable design, simple operation and multifunction features make it an invaluable tool for field testing.

This E1/datacom transmission analyzer belongs to GAO’s family of E1/datacom testers. It is a featured product in this line and is an invaluable tool for field testing. This line also includes Multi-functional E1/Datacom Tester which is designed for the installation, acceptance testing and daily maintenance of digital networks.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This easy-to-use portable transmission line/antenna analyzer, model A0070003, offers a built-in precise synthesized signal source, a high sensitive receiver and a high performance CPU. It uses a keypad to enter data and a liquid crystal display (LCD) to provide a graphical indication of SWR, or return loss (RL) over the selected frequency range.

Using frequency domain reflectometry (FDR) technology, it provides standard measurements such as VSWR, return loss, cable loss, and distance-to-fault (DTF) analysis. This light weight analyzer has a large memory to store measurement data and communicates with a computer through a USB port for measurement data download/upload or print.

This high performance transmission line/antenna analyzer belongs to GAO’s family of Other Testers. This line also includes Radio Frequency (RF) Spectrum Analyzer which is used to install, test, troubleshoot, analyze and optimize wireless networks in telecommunications, broadcasting and CATV, and high-performance PCM channel analyzer which performs tests for level, variation of gain with frequency, variation of gain with input level, quantizing distortion, idle channel noise, crosstalk, return loss and longitudinal conversion loss.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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sales@gaotek.com

Toronto, Canada –

This portable DC ground fault locator, model A0E10003, has a greatly enhanced detection range and anti-jamming capability through efficient processing of a variety of signals. This portable DC Ground Fault Locator not only focuses on performing fault testing for indirect grounding, non-metal grounding, loop grounding, positive and negative grounding, positive and negative balance grounding and multipoint grounding in DC systems efficiently, but also accurately displays system voltage, voltage to ground and ground resistance.

Using advanced computation methods and fuzzy control theory, the insulation level of a tested branch will be displayed in the form of insulation index and waveform. It also detects sensitive ground leakage and indicates direction of ground point. In addition, an insulation alarm threshold value can be set by the user.

This high performance portable DC ground fault locator belongs to GAO’s family of Earth Ground Testers. This line of earth ground testers is widely used in detecting reliable ground connections and measuring earth ground resistance. Some featured products in this line are Double Clamp Earth Resistance Tester, Single Clamp Earth Tester, and Handheld Earth Ground Tester which is an ideal tool for utility engineers or technicians, electrical contractors or earth ground professionals.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This earth resistance tester, model A0E10002, features easy and convenient operation. It provides a self-check function and automatic frequency control (AFC) function, thus minimizes interference.

It performs on-line measurement with high accuracy, serial testing, and tests the RMS of leakage current and the soil resistivity. The earth resistance tester allows an earth resistance range from 0 to 19.99 kΩ and a leakage current measurement range of 0.0 to 19.9 A. It has a memory capacity of 250 groups for data storage and communicates with a computer for data uploading. In addition, it is powered by 6 V DC, 4 × 1.5 V AA alkaline dry battery or 4.8 V DC, 4 × 1.2 V AA Ni-MH rechargeable battery.

This intelligent double clamp earth resistance tester belongs to GAO’s family of Earth Ground Testers. The similar product in the line is Single Clamp Earth Tester which simplifies ground loop testing and enables non-intrusive leakage current measurement. This line of products also includes Handheld Earth Ground Tester and Portable DC Ground Fault Locator which uses advanced computation methods and fuzzy logic to rapidly and accurately display the insulation level of a tested circuit branch providing an insulation index and waveform. This line of earth ground testers is widely used in detecting reliable ground connections and measuring earth ground resistance.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This portable digital storage oscilloscope, model A0110007, has 60 MHz bandwidth and offers up to 250 MS/s real-time sampling rate at a memory depth of 6 k per channel. It has a rise time of 5.83 ns, a vertical sensitivity from 5 mV/div to 5 V/div and a time base range from 5 ns/div to 5 s/div.

The scope features an auto-scale function, automatic settings function, automatic parameter measurement, multiple wavelength calculation functions and advanced triggering options. It also offers such triggering modes as edge trigger (Normal, Single shot, Auto) and video trigger. The scope communicates with a computer via RS232 and USB interfaces for data exchange. In addition, it provides up to 6 hours continuous operation on a single battery charge

This handheld channel digital oscilloscope belongs to GAO’s family of Portable Digital Oscilloscopes. A featured product in this family is Handheld 2 Channel 20 MHz Digital Oscilloscope/DMM. This line also has includes Portable Digital Scope w/FFT which is commonly used for electronic circuit debugging, circuit testing, design and manufacture, education and training, automobile maintenance and testing, Dual Channel Portable 150 MHz Digital Oscilloscope and other similar products.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada –

This 4-channel automotive diagnostic oscilloscope, model A0E20001, has vehicle diagnosis functions, more than 20 kinds of automatic measurement functions, automatic cursor tracking measurements, PASS/FAIL checks and fast Fourier transform (FFT) spectrum analysis. It provides advanced trigger types including edge trigger and pulse trigger and includes such trigger modes as auto, normal and single. This oscilloscope also has addition, subtraction, multiplication and FFT mathematic functions.

The diagnostic scope operates at 60 MHz and has a wide input voltage range from 8 to 36 V. It offers a maximum real-time sampling rate of up to 200 MS/s in single channel mode and 100 MS/s in dual channel mode. This oscilloscope provides a vertical resolution of 8 bits/channel and a time base range of 5 ns/div to 1000 s/div. It also has real-time sampling and roll acquisition modes with a buffer size from 10 k to 16 M samples.

This automotive diagnostic oscilloscope is powered directly from the USB port of the computer, so there’s no external power adapter required. It is compatible with OS from Windows NT to Windows 7. In addition, it boasts similar interface with bench oscilloscope, making it easy to use.

This 4-channel automotive diagnostic oscilloscope belongs to GAO’s family of Automotive Testers. This line of testers is ideal for automotive tests and offers GAO’s customers valuable choices. Featured products in this line include Handheld 2 Channel 20 MHz Digital Oscilloscope w/DDM, Handheld 2 Channel 60 MHz Digital Oscilloscope w/DDM, Portable Digital Oscilloscope w/FFT, and Multi-Function Logic Analyzer which is capable of simultaneously observing a sizeable amount of data and data flow direction control information.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada –

This 10/100/1000 Base-TX to 1000 Base-FX Media converter, model C0310001, converts Optical-Electric Ethernet signals between 10/100/1000M UTP interface (TX) and 1000M optical fiber interface (FX). It complies with IEEE 10/100Base-TX, IEEE 802.3ab 1000Base-T and IEEE 802.3z 1000Base-SX/LX standards.RJ45 port is provided to perform auto-negotiation under full-duplex and half-duplex transmission modes

This plug and play media converter supports single-mode and multi-mode fibers with a transmission distance of up to 80 km for single-mode fiber and 550 m for multi-mode fiber. It extends the transmission distance through its photoelectric conversion network. The media converter takes advantages of intelligent connection technology to provide auto-negotiation thereby eliminating the need to manually configure or monitor settings. Moreover, this media converter is available in single fiber WDM versions and can be also used as a standalone unit or works with GAO’s C0340001 chassis system.

This 10/100/1000 Base-TX to 1000 Base-FX Media Converter belongs to GAO’s Family of 10/100/1000 Media Converter. Another similar product in this line is 1000 Base-TX to 1000 Base-FX Media Converter, which is widely used in backbone network transmission and is primarily used for Gigabit Ethernet devices links.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This portable battery conductance tester, model A0E30001, measures the battery voltage and conductance online and displays and records multiple groups of batteries’ voltage, conductance and connecting strip resistance. It offers voltage test ranges from 0.000 to 25.000 V at a precision of ±0.2% rdg ± 6 dgt and conductance test range from 100 to 19990 S at a precision of ±0.5% rdg ± 6 dgt.

This battery conductance tester has a large memory capacity which stores up to 999 groups of battery parameters with a maximum of 500 cell batteries per group. Test results can be uploaded to a computer by SD card for further analysis. Additionally, it is powered by a 10.8 V, 2000 mAh rechargeable lithium battery.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This advanced portable ADSL2+ tester, model A0010003, not only verifies service and connectivity to the DSLAM, the ATM switches and various ISP servers but also performs upstream and downstream performance measurements such as actual bit rates, utilized rate  line attenuation and SNR Margin (Signal to Noise Ratio).

It performs line parameter measurements, error counts, line error, modem simulation, and ping and trace testing. This powerful tester also has a built-in digital multi-meter; technicians can determine circuit quality using voltage, resistance and capacitance measurements.

This portable ADSL2+ tester has a maximum transmission distance of 6.5 km and carries out measurements immediately with a simple push of the “Auto Test” key. Test results can be uploaded, saved and printed through the embedded software which is upgradable via an integrated Ethernet or USB interface. It runs under the Windows™ CE OS allowing direct Web site browsing. In addition, this rugged tester has a jacket protector and offers auto-off functions for energy-saving.

This portable ADSL2+ tester belongs to GAO’s family of ADSL testers. Featured products in this line include portable ADSL2+ tester which has been widely used by ADSL business operators and Multi-function Handheld xDSL Tester which is designed to test and analyze VDSL2, ADSL, ADSL2 and ADSL2+ networks. This line also includes other similar ADSL testers such as Pocket Size Handheld ADSL2+ Tester and Multi-function ADSL/ADSL2+ Tester.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This easy-to-use USB PC-based logic analyzer, model A0220001, is capable of measuring 34 channels at 500 MHz. It uses advanced large-scale integrated circuits, high-frequency digital circuits, embedded systems and the other advanced technologies. It has the features of a multi-channel oscilloscope and other automatic testing instruments. The logic analyzer also features a variety of digital information capture functions, a large memory capacity, and multiple trigger modes.

It has a delay function to capture the waveforms prior to or behind the required observation points and is capable of simultaneously observing a sizeable amount of data and data flow direction control information. It also identifies error conditions and locates faults in the source code. Intuitive and flexible displays return dynamic analysis results in binary, decimal, hexadecimal or ASCII format to facilitate debugging. The analyzer has an input voltage range of -60 to 60 V and a logic threshold range from -6 to 6 V. Inputs include TTL, LVTTL, CMOS, LVCOMS, ECL, PECL and EIA. In addition, the analyzer is controlled and powered via USB2.0 interface.

This USB PC-based logic analyzer belongs to GAO’s family of Logic Analyzers and Generators. Some featured products in the family are Digital RF Millivoltmeter and Frequency Counter, DDS Function /Arbitrary Generator/Counter, Digital Function Generator and Radio Frequency Signal Generator which is generally used in designing, testing, troubleshooting, and repairing electronic or electroacoustic devices. The line of products is generally used in designing, testing, troubleshooting, and repairing electronic or electro acoustic devices.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada -

This versatile handheld CATV/QAM analyzer, model A0N00014, features easy operation and fast spectrum analysis. Digital TV index measurement includes channel power, MER (modulation error ratio), BER (bit error rate) and constellation diagrams for 16/ 32/ 64/ 128/ 256QAM/ ITU-TJ.83 Annex A/B/C modulation types. Analog TV index measurement includes C/N, V/A, Tilt, Limit and trunk voltage. In addition, this compact analyzer also boasts a spectrum analysis function, CM statistic function, Ping function and bandwidth testing function.

The compact analyzer runs under Linux operating system and communicates with a computer via a USB port for simple data communications and storage. Its cable modem testing mode is compatible with DOCSIS 1.X, DOCSIS 2.0, and DOCSIS 3.0. The analyzer also has a built-in Web browser. It is powered by a 4.8 V 2.1 Ah rechargeable battery providing more than 6 hours continuous operation when fully charged.

This high-performance CATV/QAM analyzer belongs to GAO’s family of CATV Meter & Instrument. This line of products includes CATV analyzers, digital signal level meters, TDR cable fault locator, and handheld signal level analyzers. The line of products is very popular among CATV technical personnel and engineers.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This easy-to-use handheld earth ground tester, model A0E10004, features basic ground testing methods including 2-pole, 3-pole and 4-pole. W hen measuring using 2-pole, there is no need for the auxiliary rod. The tester can also measure AC voltage and soil resistivity and can save up to 15 groups data. It sends a warning signal when results exceed the test range and it will automatically terminate the measurement when an improper operation is made. This portable earth tester is compliant with ISO9001:2000 standard and provides an IP54 protection rating making it suitable for field use.

This handheld earth ground tester belongs to GAO’s family of Earth Ground Testers. This line of products includes a wide variety of products. The featured product in this line is Portable DC Ground Fault Locator which is specially designed for use in power generation, distribution, and industrial applications. Other models include Single Clamp Earth Tester and Double Clamp Earth Resistance Tester. This line of earth ground testers is widely used in detecting reliable ground connections and measuring earth ground resistance.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This advanced SDH/PDH transmission analyzer, model A0020005, has electrical and optical interfaces. It performs on-line and off-line tests of T1, E1 (2048 kbit/s), E2 (8448 kbit/s), E3 (34368 kbit/s), E4 (139264 kbit/s), DS1 (1544 kbit/s), DS3 (44736 kbit/s), STM-1 (155520 kbit/s), STM-4 (622080 kbit/s), and STM-16 (2488.320 Mbit/s). It also conducts pulse mask analysis, overhead analysis, point analysis and anomaly/defect analysis as well as bit error rate (BER) testing.

This portable analyzer evaluates and analyzes results according to ITU-T G.821, G.826, G.828, G.829, M.2100 and M.2101. Its various functions also include automatic tributary scanning, automatic protection switching (APS), round trip delay measurement, TCM serial monitoring, timing and synchronization testing and real-time optical power testing.

In addition, this analyzer has a large memory capacity to record bit error and alarm events that can be displayed in charts and graphics. Test results can be saved as HTML or TXT format or uploaded to PC for further analysis, reporting and printing.

This versatile SDH/PDH transmission analyzer belongs to GAO’s family of Datacom Analyzer. The family of testers also includes GAO A0020003, GAO A0020004 and GAO A0020006. The analyzers are very popular among telecom test engineers as a result of its functionality, portability and high performance.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada -

This portable xDSL tester, model A0010005, features a portable handheld design with strap and operates under Windows CE operating system. It tests xDSL physical layer parameters and confirms whether a line is suitable for xDSL service. The xDSL tester evaluates line quality, performs PPPoE dial-up, provides Web page browsing and emulates a PC+ Modem in order to test the connection to the ISP. It also performs LAN and DMM tests. Test results including Ping, IP Config, Route, and Tracert are displayed on its TFT true color LCD screen.

This xDSL tester provides a maximum test distance of up to 6.5 km and has a large memory capacity of 20 M to save ADSL test records and other data which is transferable through the USB port and LAN. In addition, its embedded software can be upgraded to the latest version via USB or LAN.

This portable xDSL tester belongs to GAO’s family of ADSL testers. This line includes a wide variety of testers. Featured products in this line include Multi-function Handheld xDSL Tester which is designed to test and analyze VDSL2, ADSL, ADSL2 and ADSL2+ networks, and Portable ADSL2+ Tester which is especially useful for installation and maintenance. This line also includes other similar ADSL testers such as Multi-function ADSL/ADSL2+ Tester and Pocket Size Handheld ADSL2+ Tester.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada -

This easy-to-use ADSL tester, model A0010002, tests a variety of ADSL standards and also functions as a digital mullti-meter (DMM).

This ADSL2+ tester tests the physical layer, network layer and lines in accordance with ADSL, ADSL2, ADSL2+ and Re-ADSL standards. Network layer tests include Ping, IP config, route and tracert test. The tester is able to conduct tests while the operator browses previous test records.

It stores 1000 test results and 7 test configurations. It communicates with a computer via RJ45 and RS232 communication ports for data exchange. It also allows for online software updates and simulates PC and dial-up via Modem. In addition, it boasts a built-in rechargeable lithium battery with a large capacity of 4000 mAh 7.2 V, allowing for up to 6 hours operation.

This ADSL tester belongs to GAO’s family of ADSL testers. This line includes a wide variety of testers. Featured products in this line include Multi-function Handheld xDSL Tester which is designed to test and analyze VDSL2, ADSL, ADSL2 and ADSL2+ networks, and Portable ADSL2+ Tester which is especially useful for installation and maintenance. This line also includes other similar ADSL testers such as Multi-function ADSL/ADSL2+ Tester and Pocket Size Handheld ADSL2+ Tester.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

This easy-to-use PC-based oscilloscope, model A0120001, features a maximum real-time sampling rate of up to 100 MS/s and 40 MHz bandwidth. It combines the functions of an oscilloscope, spectrum analyzer, waveform recorder, signal generator, voltmeter and cymometer.

This versatile and widely-used oscilloscope has 23 measurement functions and PASS/FALL checking functions. The triggering modes include auto, normal and single and the triggering level is adjustable. The scope provides FFT spectrum analysis and four adjustable vertical modes including CH1, CH2, Dual and ADD. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot.

Waveforms can be saved in text, MS Word, Excel or graphic files (JPG or BMP) formats under most Windows OS up to Vista. In addition, it is compatible with USB 2.0 and requires no external power.

This easy-to-use PC-based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. Other models in this line include 100 MHz USB PC Based Oscilloscope, 60 MHz USB PC Based Oscilloscope and Digital Storage Oscilloscope.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada -

This compact E1 Bit Error Rate (BER) tester, model A0040007, features self-check and keyboard testing, extensive error and alarm generation, detection and indication. It provides BER testing, alarm analysis, performance analysis and signal analysis.

It performs both out-of-service framed and unframed testing. It offers full-featured measurements of E1, Datacom and protocol converter and conducts clock slip measurement, frequency and level measurement as well as manual and auto-timer measurement. Test results can be uploaded, analyzed and printed via included software which is upgradeable via an integrated RS232C interface. In addition, this BER tester possesses a large memory capacity and saves/recalls up to 10 user-defined setups and ten sets of test results.

All in all, this easy-to-use tester is an ideal device for fast problem resolution, E1 PCM line access, maintenance and acceptance testing.

This E1 Bit Error Rate (BER) tester belongs to GAO’s family of E1 BER Testers.This E1 Bit Error Rate (BER) tester is one of the featured products in this line, another one is portable E1/Datacom transmission analyzer which is designed for performing comprehensive analysis, measurement and evaluation of telecom networks. This line also includes E1/T1 BER Tester and Data Transmission Analyzer, SDH/PDH Transmission Analyzer which is designed for field use in analysis and maintenance of E1 data transmission services, and other similar products.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada -

This handheld multi-function CCTV tester, model 101, combines a CCTV video tester, PTZ camera controller, UTP cable tester, video test pattern generator and PTZ protocol analyzer in one unit.

An OSD menu provides easy visual operation. It identifies NTSC and PAL video modes. RS232, RS422 simplex, and RS485 interfaces are provided for data exchange. Its power is supplied via the included power adapter or internal battery.

This low power consuming tester is compatible with more than twenty kinds of PTZ controller protocols such as PELCO-P, PELCO-D, Samsung, Panasonic and Molynx.

In addition, this handheld CCTV meter is specifically designed to perform well even under harsh environments including temperatures between -30 and 70 °C and relative humidity from 30% to 90%.

This handheld multi-function CCTV tester belongs to GAO’s family of Other Video Equipment. This line also includes 7 Inch Industrial Panel PC with WinCE 5.0 which is ideal for embedded applications in environments where power is intermittent.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada -

This 1000M Ethernet media converter, model C0330005, features a modular design and hot-pluggable SFP footprint. It provides a 1000M SFP port and a UTP port and allows for full-duplex and half-duplex transmission modes.

Two types of media network connections including 1000Base-T and 1000Base-SX/LX are provided. This media converter conducts mutual conversion between 1000Base-T twisted pair electrical signal and 1000Base-SX/LX optical signal.

This media converter extends the transmission distance of a network from 100 m over copper wires to up to 80 km through optical fiber link. Alarm LED illuminates to indicate link failure, while the status LEDs fully monitor the convertor’s operational status making observation and diagnoses easy.

Additionally, taking advantage of intelligent connection technology, the media converter provides an auto-negotiation function thereby eliminating the need to manually configure or monitor settings.

This 1000M dual port media converter belongs to GAO’s family of Fiber Switches. This line includes a variety of products such as 4 port Gigabit Ethernet switch which has two 10/100/1000 M RJ45 ports and two 1000 M SFP sockets., 6 Port 10/100Base-TX Ethernet Switch with 1 Port 100Base-FX Uplink and 6 Port 10/100Base-TX Ethernet Switch with 2 Port 100Base-FX Uplink.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada -

This 4 port Gigabit Ethernet switch, model C0330004, converts optical/electrical Ethernet signals between 10/100/1000M UTP ports and 1000M optical fiber ports.

With an auto negotiation function, it allows for UTP ports to auto 10/100/1000M and Full duplex/Half Duplex. It also allows for VLAN and QoS and provides broadcast storm protection. It has 12 G bandwidth which can be transmitted to achieve non-blocking wire-speed.

This 4 port Gigabit Ethernet switch provides IEEE802.3x flow control in full duplex mode and back pressure flow control in half duplex mode. It provides transmission distances of up to 224 m on 50/125μm MMF and 550 m on 62.5/125 μm MMF while on 8/125, 8.7/125, 9/125, 10/125 μm SMF, it offers a transmission distance of up to 100 km. Additionally, it has a 512 kb RAM frame buffer memory.

This 4 port Gigabit Ethernet switch belongs to GAO’s family of Fiber Switches. This line includes a variety of products such as 1000M Dual Port Media Converter which conducts mutual conversion between 1000Base-T twisted pair electrical signal and 1000Base-SX/LX optical signal, 6 Port 10/100Base-TX Ethernet Switch with 1 Port 100Base-FX Uplink and 6 Port 10/100Base-TX Ethernet Switch with 2 Port 100Base-FX Uplink.

For sales inquiries please contact:
1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada -

This digital storage oscilloscope, model A0120005, features a 5-in-1 design. That is, it integrates a digital oscilloscope, a logic analyzer, a FFT spectrum analyzer, an electronic counter and a clock Jitter analyzer into one device. It operates at 170 MHz and supports up to 512 trigger levels.

The module efficiently solves complicated trigger problems by providing a comprehensive set of triggers such as rising or falling edge, pulse width, delayed and count. It provides a maximum repeat sampling rate of 20 GS/s and single shot sampling rates of up to 1 GS/s.

The digital storage oscilloscope (DSO) has 4 M/8 M sampling data acquisition buffers on each channel and boasts a Fast Fourier Transformations (FFT) function for bandwidth tests. Additionally, this digital storage oscilloscope provides multi-window software, optional DLL libraries, and up to 7 digital resolutions at 1 M memory for each analog channel as well as convenient timing state display for logic debug. It is suitable for field use in sciences, medicine, engineering and telecommunications.

This digital storage oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. The family includes a variety of digital oscilloscopes with different bandwidths and sampling rates such as 100 MHz USB PC Based Oscilloscope, 40 MHz USB PC Based Oscilloscope and 60 MHz USB PC-Based Oscilloscope.The oscilloscopes are commonly used for the maintenance of electronic equipment and laboratory work in fields such as science, medicine, engineering and telecommunications.

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This direct digital synthesis (DDS) arbitrary function generator and counter, model A0230002, has outstanding features including convenient data input via knob or numerical keyboard and remote SCPI compatible program-control via RS232, GPIB, and USB interfaces. It boasts high pulse duty ratio resolution of up to 0.001, high resolution and accuracy of digital FM and 0.1° phase adjustment resolution.

Using direct digital synthesis (DDS) and VFD (visible vacuum fluorescent) techniques, it creates stable and accurate output signals with a wide selection of low distortion standard and arbitrary waveforms. It provides standard or internal storage of 27 fixed waveforms and 8 to 16000 configurable memory points for arbitrary waveforms.

This direct digital synthesis (DDS) arbitrary function generator and counter also allows for the arbitrary setting of AM modulation from 1% to 120% and the setting of start and end frequency for frequency scan output. It implements continuous phase adjustment in trig mode. In addition, it can store and recall 10 groups of configurations.

This DDS arbitrary function generator/counter belongs to GAO’s family of Logic Analyzers and Generators. This line also includes Digital RF Millivoltmeter and Frequency Counter which is an essential instrument for workshop production and laboratory ultra-high frequency voltage measurements, Digital Function Generator and Radio Frequency Signal Generator. The line of products is generally used in designing, testing, troubleshooting, and repairing electronic or electro acoustic devices.

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This advanced portable PCM channel analyzer, model A0050003, integrates an analog signal generator/receiver, a selective level meter, a BERT, a signaling generator/receiver, a ring generator/identifier, a Dialer, a DC loop circuit (ICT, OGT), a balanced bridge and a reflecting bridge and other functions into a single instrument. It features touch-panel operation, key-stroke operation, expanded mouse operation, flexible control modes and a convenient Windows’ style GUI. Its built-in generator and receiver, analog input and output interfaces are separately with ICT and OGT. And the built-in call set-up circuit can set up testing channel directly by dialing on the tester without the help of other telephone. It performs test of frequency spots sequence of equal step and customized frequency spots and selective frequency measuring on all frequency spots. With remote control via USB or Ethernet interface, users can develop and design voice channel measurement/control systems under a variety of different conditions. The analyzer also compares the measured results with built-in standard ITU-T tolerance masks to evaluate whether the results indicate a pass or fail. Test results can be uploaded to a computer where they can be further viewed, analyzed, assembled, filed and printed via the included software.

This advanced portable PCM channel analyzer belongs to GAO’s family of CATV Meters & Instruments. This line of products includes TDR cable fault locator which is able to scan 125 channels at the same time and has the ability to display two channels simultaneously, digital signal level meters, handheld signal level analyzers and QAM analyzers which are widely used for CATV signal testing and are intended for analog and digital television network construction and maintenance.

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This E1 service tester, model A0040008, features self-check and keyboard testing functions and histograms analysis of alarm and error events. It offers all of the error and alarm measurements required to verify quality-of-service in E1 networks and signal quality measurements including frequency, level, offset, VF and delay measurement. This E1 tester can save and recall up to 7 user-defined setups and 10 sets of results. All test results can be uploaded, saved and printed through the included software which can be easily upgraded through an integrated USB interface. Additionally, equipped with smart navigation mode displays and built-in Ni-MH rechargeable batteries and smart charger circuit, the E1 service tester can operate for up to 6 hours on a single battery charge.

This E1 service tester belongs to GAO’s family of E1 Service Testers. This line also includes Portable PCM Channel Analyzer which integrates an analog signal generator/receiver, a selective level meter, a BERT, a signaling generator/receiver, a ring generator/identifier, a Dialer, a DC loop circuit (ICT, OGT), a balanced bridge and a reflecting bridge and other functions into a single instrument, E1/Ethernet Tester which is a comprehensive test tool for E1, V port and Gigabit Ethernet link maintenance and failure diagnosis, and Portable E1/Datacom Transmission Analyzer.

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This parallel data acquisition module, model A0K00001, features parallel design, 2 independent programmable gain channels and high accuracy with phase consistency. Demo source code is provided for common development platforms to support technical development. The acquisition module offers triggering sources including software (manual), internal and external triggering. It has a memory depth of 4 M/ch which can be extended to 8 M/ch or 16 M/ch. This data acquisition board boasts a wide sampling rate ranging from 1 k to 20 M with a low inter-channel phase difference of less than 1°. In addition, it provides ±40 mV to ±40 V voltage signal acquisition with toolkit.

This parallel data acquisition module belongs to GAO’s family of PC104 Data Acquisition Modules. A similar product in this line is parallel data acquisition module which is equipped with two high-speed 40 MS/s ADCs with 12 bit A/D resolution and is designed for time-phase sensitive acquisition. This line of parallel data acquisition modules are designed for quick and easy parallel data acquisition.

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This 2 channel digital storage oscilloscope, model A0110001, is available in three different bandwidths of 25, 60 or 100 MHz and comes complete with 2 passive probes which are switchable between 1:1 and 10:1 input ratio. It can detect the average and peak values of a waveform and can store up to 5000 waveform points per channel. It provides a real-time sampling rate of 100 MSa/s and a rise time of less than 14 ns. The digital scope provides an autoscale function, multiple-waveform calculation function, FFT function and automatic settings function for fast set up. It offers advanced triggering functions including edge trigger, video trigger and alternate trigger. In addition, this portable digital scope uses RS232 or USB interfaces for data storage and printing.

This portable digital scope belongs to GAO’s family of Portable Digital Oscilloscopes. The family includes a variety of digital oscilloscopes with different bandwidths and sampling rates such as Handheld 2 Channel 60 MHz Digital Oscilloscope/DMM which is an ideal tool for engineers and technicians in the performance of complex measurements and troubleshooting during on-site inspection and PS1062CA Portable Digital Oscilloscope which maintains a balance in performance, size and cost to meet the needs for low bandwidth debugging.

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This USB PC based oscilloscope, model A0120009, combines the functions of an oscilloscope, spectrum analyzer, waveform recorder, signal generator, voltmeter and cymometer into one unit. It has 23 measurement functions and PASS/FALL checking functions. It provides 100 MHz bandwidth and a maximum real-time sampling rate of up to 250 MS/s. This digital oscilloscope provides three triggering modes including auto, normal and single. The scope also provides four adjustable vertical modes including CH1, CH2, Dual and ADD. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. This oscilloscope also performs FFT spectrum analysis. Its waveform output can be saved in text, MS Word, Excel or graphic (JPG or BMP) formats under most OS from Windows 98 to Windows Vista. In addition, it is compatible with USB 2.0 and no external power is required.

This USB PC based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. This line of products also includes 40 MHz USB PC Based Oscilloscope, 60 MHz USB PC Based Oscilloscope, and Digital Storage Oscilloscope. This line of oscilloscopes is ideal for the maintenance of electronic equipment and laboratory work in fields such as science, medicine, engineering and telecommunications.

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Toronto, Canada -

This digital oscilloscope, model A0110002, integrates a digital oscilloscope (DSO), a digital multimeter (DMM) and a cymometer into one unit. It has 20 MHz bandwidth and offers up to 100 MS/s real-time sampling rate at a memory depth of 6 k per channel. This handheld oscilloscope features an auto-scale function, automatic settings function, automatic parameter measurement, multiple wavelength calculation functions and advanced triggering options. It supports independently floating and isolated inputs for multimeter and between oscilloscope and multimeter. It has a rise time of 5.83 ns, a vertical sensitivity from 5 mV/div to 5 V/div, and a time base range from 5 ns/div to 5 s/div. This digital oscilloscope offers such triggering modes as edge trigger (Normal, Single shot, Auto) and video trigger. In addition, it uses RS232 and USB interfaces are for data transfer.

This handheld channel digital oscilloscope belongs to GAO’s family of Portable Digital Oscilloscopes. The family includes a variety of digital oscilloscopes with different bandwidths and sampling rates such as Handheld 2 Channel 60 MHz Digital Oscilloscope/DMM which has all of the functionality of a digital multimeter (DMM), such as measurements for voltage, current, resistance, capacitance, and diode and continuity check , Portable Digital Scope w/FFT which is commonly used for electronic circuit debugging, circuit testing, design and manufacture, education and training, automobile maintenance and testing, and Dual Channel Portable 150 MHz Digital Oscilloscope.

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This handheld CATV signal analyzer, model A0N00002, operates at a level frequency range of 46 to 870 MHz with a resolution bandwidth of 280 ± 50 kHz. It features high-speed measurement, auto-off time setup and auto scan testing. This portable CATV signal analyzer provides DVB-C digital signal testing including average peak power, MER, BER, and C/N. The instrument tests CATV signal level in both channel and frequency modes. In channel mode, the signal analyzer scans all channels and stores the signal levels; in frequency mode, the spectrum is displayed and the frequency range is tested. It provides a maximum channel scan of 100 channels at a speed of 30 channels/min and stores 23 groups with 100 channels for each group when performing auto scan testing. In addition, it is powered by a 7.2 V/1.6 Ah rechargeable battery providing more than 4.5 hours continuous operation and has an AC power supply as well.

This handheld CATV signal analyzer belongs to GAO’s family of CATV Meters & Instruments. This line of products includes CATV analyzers, digital signal level meters, TDR cable fault locator, handheld signal level analyzers and QAM analyzers which are widely used for CATV signal testing and are intended for analog and digital television network construction and maintenance.

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Toronto, Canada –

This USB arbitrary function generator, model A0210002, operates over a wide frequency range of 0.1 Hz to 25 MHz. It features high frequency accuracy, high waveform resolution, and high reliability due to the implementation of DDS (Direct Digital Synthesized) technology. It generates regular waveforms such as Sine, Square, Triangle, Saw-tooth, TTL, White Noise, Gaussian Noise, Trapezoid, Exponent and AM and FM signals. Parameters such as amplitude, frequency and offset are programmable. It has one channel for 12-bit arbitrary synchronized waveform output, one 6-bit input channel for counter/frequency measurement and an external trigger input. It also has a built-in 50 MHz frequency counter. This generator can read waveform data files produced by Tektronix oscilloscopes or Tektronix waveform editor software. It is compatible with USB interface and is fully plug and play and requires no external power. The generator runs under multiple Windows OS including Windows NT/2000/XP/Vista and Windows 7. In addition, this generator ships with both SDK and API and can be easily integrated or embedded into other auto-measuring systems.

This arbitrary function generator belongs to GAO’s family of Waveform Generators. This line also includes the featured product Arbitrary Waveform Generator and Frequency Counter which has one channel of 8-bit arbitrary synchronized waveform output, two 8-bit input channels for counter/frequency measurement and external trigger input.

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This PCM channel analyzer, model A0070001, features a portable design, built-in direct current loop feed circuit and direct current loop hold circuit. It provides both auto and manual measurement modes and performs multi-task operations which allows for simultaneous testing and reviewing of previous records. It also performs end to end test and loop-back test. This analyzer provides a signal frequency range of 100 to 4000 Hz and an output level range of 6 to -61 dBm0. It compares the measured results with built-in standard ITU-T tolerance masks and evaluates whether the results indicate a pass or fail. This channel analyzer has a storage capacity of up to 60 groups of measurement results and configurations. In addition, test results are displayed graphically and can be uploaded to a computer for further analysis, filing and printing via embedded software which can be upgraded online.

This PCM channel analyzer belongs to GAO’s family of Other Testers. This line also includes Radio Frequency (RF) Spectrum Analyzer which is used to install, test, troubleshoot, analyze and optimize wireless networks in telecommunications, broadcasting and CATV, and High Performance Transmission Line/Antenna Analyzer which is commonly used in broadcast television, CATV, GPS, GSM/PCS, microwave relay, satellite communications and radar.

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Toronto, Canada –

This easy-to-operate earth resistance tester, model A0E10002, provides self-check function and automatic frequency control (AFC) function which can minimize interference. It performs on-line measurement with high accuracy, serial testing, and tests the RMS of leakage current and the soil resistively. This earth resistance tester allows a resistance range for resistively of earth resistance from 0 to 19.99 kΩ and a leakage current measurement range of 0.0 to 19.9 A. It has a memory capacity of 250 groups for data storage and communicates with a computer for data uploading. In addition, it is powered by 6 V DC, 4 × 1.5 V AA alkaline dry battery or 4.8 V DC, 4 × 1.2 V AA Ni-MH recharge battery.

This handheld double clamp earth resistance tester belongs to GAO’s family of Earth Ground Testers. A similar product in the family is Single Clamp Earth Tester. This line of products also includes Handheld Earth Ground Tester and Portable DC Ground Fault Locator which uses advanced computation methods and fuzzy logic to rapidly and accurately display the insulation level of a tested circuit branch providing an insulation index and waveform. This line of earth ground testers is widely used in detecting reliable ground connections and measuring earth ground resistance.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

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Toronto, Canada –

This digital storage oscilloscope, model A0120007, operates at 170 MHz and supports up to 512 trigger levels. The module efficiently solves complicated trigger problems by providing a comprehensive set of triggers such as rising or falling edge, pulse width, delayed and count. It provides a maximum repeat sampling rate of 20 GS/s and single shot sampling rates of up to 1 GS/s. The DSO has 4 M/8 M sampling data acquisition buffers on each channel and boasts a Fast Fourier Transformations (FFT) function for bandwidth tests. In addition, this digital storage oscilloscope provides multi-window software, optional DLL libraries, and up to seven digital resolutions at 1 M memory for each analog channel as well as convenient timing state display for logic debug.

This digital storage oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. The family includes a variety of digital oscilloscopes with different bandwidths and sampling rates such as 100 MHz USB PC Based Oscilloscope which is commonly used for the maintenance of electronic equipment and laboratory work in fields such as science, medicine, engineering and telecommunications.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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This cost-effective DC ground fault locator, model A0E10003, features easy and convenient operation, high resolution signal sampling and direct current clamp meter. It performs fault testing for indirect grounding, non-metal grounding, loop grounding, positive and negative grounding, positive and negative balance grounding, and multipoint grounding in DC systems efficiently. It displays system voltage, voltage to ground, and grounding resistance. This high-performance ground fault locator also detects sensitive ground leakage and indicates direction of ground point. In addition, an insulation alarm threshold value can be set by users.

This portable DC ground fault locator belongs to GAO’s family of Earth Ground Testers. The line includes two similar products: Double Clamp Earth Resistance Tester and Single Clamp Earth Tester. They are widely used to test soil resistivity and leakage current of grounding systems under different conditions. The line also includes Handheld Earth Ground Tester which conducts 2-pole, 3-pole and 4-pole earth resistance tests and also measures AC voltage and soil resistivity. This line of earth ground testers is widely used in detecting reliable ground connections and measuring earth ground resistance.

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This portable battery conductance tester, model A0E30001, performs high precision online testing. It tests the battery voltage and conductance online and displays and records multiple groups of batteries’ voltage, conductance, and connecting strip resistance. The battery conductance tester provides voltage test ranges of 0.000 to 20.000 V at a precision of ±0.2% rdg ± 6 dgt. It automatically switches the conductance test range between 100 to 19990 S at a precision of ±0.5% rdg ± 6 dgt. It stores up to 999 groups of battery parameters with a maximum of 500 cell batteries per group and the test data can be transmitted to a computer by SD card for further analysis. The tester boasts intelligent data analysis PC software to track the battery decay trend and send an alarm in advance of problems. In addition, it is powered by a 10.8 V, 2000 mAh rechargeable lithium battery.

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This single clamp earth tester, model A0E10001, measures the integrated value of ground resistance and also tests the leakage current of ground wires. It features easy operation, high accuracy measurement and anti-interference. This earth tester allows a wide ground loop resistance range from 0.01 to 1000 Ω with a resolution of 0.001 to 20 Ω at the highest accuracy of ±(1% + 0.01 Ω). The tester goes beyond the limitations of traditional methods of earth resistance testing as it does not require the disconnection of the ground wire. Earth ground loop testing and continuity testing can be completed without breaking the circuit. In addition, it also features automatic self- calibration ensuring correct measurement every time.

This handheld single clamp earth tester belongs to GAO’s family of Earth Ground Testers. A similar product in the family is Double Clamp Earth Resistance Tester. This line of products also includes Handheld Earth Ground Tester and Portable DC Ground Fault Locator which uses advanced computation methods and fuzzy logic to rapidly and accurately display the insulation level of a tested circuit branch providing an insulation index and waveform. This line of earth ground testers is widely used in detecting reliable ground connections and measuring earth ground resistance.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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Toronto, Canada –

This 4-channel automotive diagnostic oscilloscope, model A0E20001, operates at 60 MHz and supports EXT trigger. It provides advanced trigger types including edge trigger and pulse trigger and includes such trigger modes as auto, normal and single. The diagnostic scope offers a maximum real-time sampling rate of up to 200 MS/s in single channel mode and 100 MS/s in dual channel modes. It provides a vertical resolution of 8 bits/channel and a time base range of 5 ns/div to 1000 s/div. It also has real-time sampling and roll acquisition modes with a buffer size from 10 k to 16 M samples. It displays such measurements as Vpp, Vmax, Vmin, Vmean, Vrms, Vamp, Vtop, Vbase, Vmid, positive overshoot, negative overshoot, cycle mean, cycle RMS, period, frequency, positive pulse width, negative pulse width, rise time (10%~90%), fall time (10% to 90%), positive duty cycle and negative duty cycle. It has addition, subtraction, multiplication and FFT mathematic functions. Additionally, it is compatible with USB 2.0 and is fully plug and play and requires no external power. These features make it ideal for use either in the workshop or on the road to test and measure virtually all of the electrical and electronic components and systems in motor vehicles.

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This rugged industrial panel PC, model A0490002, features standard communication interfaces including Gigabit Ethernet and isolated RS232/RS485 serial ports, which can connect to industrial automation PLC, DCS, SCADA and PAC systems for production and factory automation applications. It offers a 4-wire resistive touch screen with the panel resolution of 800x 480, 260 k colors. The compact industrial panel PC runs under Win CE operating system and features a built-in rechargeable battery. It also features a fanless, shock-proof design, and low power consumption. In addition, it has a 2 GB FLASH and 128 MB SDRAM memory for data storage. The computer panel is ideal for embedded applications in environments where power is intermittent.

This rugged industrial panel PC belongs to GAO’s family of Other Video Equipment. This line also includes a Handheld Multi-Functional CCTV Tester which is an ideal device for installers and field technicians to test video, PTZ function, and status of UTP cables conveniently and efficiently.

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1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

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This handheld earth ground tester, model A0E10004, is a portable and easy-to-operate tool for quickly detecting reliable ground connections in most work environments. It features basic ground testing methods including 2-pole, 3 pole and 4-pole ground resistance. This earth ground tester also measures AC voltage and soil resistivity. It sends a warning signal when results exceed the test range. Earth Ground resistance measurements are used to ensure safe operation of an electrical installation and reduce power quality problems. The tester can save up to 15 groups data and, in addition, provides an IP54 protection rating making it suitable for field use.

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This 10/100/1000M media converter operates at a speed of 1000 Mb/s over both optical and electric channels. It supports single-mode and multi-mode fibers with a transmission distance of up to 80 km in single-mode fiber and 550 m in multi-mode fiber. It also extends the transmission distance through its photoelectric conversion network. The media converter has two types of available network connections, namely 10/100/1000M Base-T Gigabit Ethernet UTP port and 1000Base-Sx/LX Gigabit Ethernet Fiber port. It uses 802.3x flow control for full-duplex ports and back-pressure flow control for half-duplex ports. It is compliant with RoHS standard and provides auto mode on the TP port. The converter offers comprehensive fiber connections including SC, BiDi and LC. It transforms the transmission media of an Ethernet signal via CAT5 to optical fiber with typical length of 100 meter. In addition, it has passed FCC Part 15 Class A and CE certifications.

This 10/100/1000M media converter belongs to GAO’s family of 10/100/1000M. This line of products also includes 1000Base-T to 1000Base-X Converter which is an ideal solution for short reach multi-mode fibers, long reach single mode fibers, Bi-Di and CWDM applications. The line of products is commonly used for Ethernet networks to convert signals from one media type to that of another.

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This real time digital video recorder, model A0420001, features built-in scheduling and manual and motion detection record modes. It records images with three adjustable resolution levels. The recordings are compatible with NTSC or PAL format. It provides 100 F/S/4CH (PAL) and 120 F/S/4CH (NTSC) frame display rate. For video recording, it features 4 channel inputs (BNC) and 2 channel outputs (1BNC and 1VGA), and the data is searchable by event, date, time and channel. In regard to audio recording, it features 4 channel synchronous inputs and 1 channel synchronous output. It also provides Web based browsing and 3G mobile browsing to view video remotely from any location. This DVR adopts H.264 Video Compression with high-precision quality graphics and G.722 Audio Compression. In addition, it is compliant with multiple protocols such as ARP, RARP, IP, TCP, PPPOE and DHCP.

This real time digital video recorder belongs to GAO’s family of Digital Video Recorders (DVRs).This line of DVRs includes a variety of DVRs featuring different channels such as 16 Channel Digital Video Recorder which provides real time recording and PTZ control and 8CH Digital Video Recorder.

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This professional digital function generator, model A0230001, operates at a frequency range of 0.3 Hz to 3 MHz or 0.5 Hz to 5 MHz. It contains an attenuator, offers various means of output waveform modulation and has the ability to automatically and repetitively sweep the frequency of the output waveform between two operator-determined limits. The function generator features variable DC offset control, high resolution, INT/EXT AM/FM modulation, LIN/LOG sweep mode and GCV output for synchronization. The digital function generator offers adjustable sweep time and sweep rate both in LIN and LOG modes. It has an external voltage controlled frequency (VCF) function; duty cycle control with signal inversion capacity, two-step and variable attenuator and a built-in 6 digit counter with INT/EXT function up to 100 MHz. The digital function generator generates Sine, Triangle, Square, Ramp, TTL and COMS output waveforms.

This digital function generator belongs to GAO’s family of Logic Analyzers and Generators. Featured product in this line is Arbitrary Waveform Generator and Frequency Counter. Other products in this line are DDS Function/Arbitrary Generator/Counter, Digital RF Millivoltmeter and Frequency Counter and Radio Frequency Signal Generator.

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This color video quad processor, model 204-01S, detects motion within 48 areas with an adjustable sensitivity of 256 levels. It will automatically display the picture and raise an alarm when motion is detected. It supports both single video mode and auto switch PiP mode. In PiP mode, three sub-window modes can be selected. It supports duplex operation with VCR playback and is compatible with both PAL and NTSC modes. The video display modes include sequence switch, single picture, quad picture, PiP, Zoom and freeze-frame functions while the alarm mode includes video loss alarm, video motion alarm and external alarm.

This high performance video quad processor belongs to GAO’s family of Quad Processors and Video Multiplexers. Other models in this line are 16 Channel, Real Time, Color Video Multiplexer, 9 Channel Real Time Color Video Multiplexer and Color Video Quad Processor . This line of products can be used for schools, homes, factories and traffic surveillance equipment.

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This high performance, 8 bit, two-channel USB PC-based oscilloscope, model A0120002, has 23 measurement functions and PASS/FALL checking functions. It provides a maximum real-time sampling rate of 150 MS/s and 60 MHz bandwidth. This digital oscilloscope provides three triggering modes including auto, normal and single. The scope also provides four adjustable vertical modes including CH1, CH2, Dual and ADD. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. This oscilloscope also performs FFT spectrum analysis. Moreover, the waveform output can be saved in text, MS Word, Excel or graphic (JPG or BMP) formats under most Windows OS up to Vista.

This easy-to-use USB PC-based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. Other models in this line include 100 MHz USB PC Based Oscilloscope, 40 MHz USB PC Based Oscilloscope and Digital Storage Oscilloscope.

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This OTDR, model A0840006, features an extra short event dead zone of 1.6 m, a high resolution of 0.025 m, 128 k sampling points, and a convenient visible fault location (VFL) function. It creates fiber event reports, fiber zone reports and fault reports. This OTDR provides a maximum dynamic range of 35/34 dB and a stable source output power of -8 dBm. It also provides three print modes including standard mode (full-size, multipage OTDR report), compressed mode (one page report) and curves (four six or eight curves on one page). It uses a USB port for file transfer and software upgrade. In addition, it is powered by a built-in lithium battery with high capacity which provides for over 8 hours of continuous operation.

This multi-function optical time domain reflectometer (OTDR) belongs to GAO’s OTDR family. Other model in this line is Handheld Fiber Optic OTDR which is an innovative test instrument for telecommunication networks and is specially designed for fiber network construction and maintenance in FTTx, WAN and CATV systems.

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This easy-to-use PC-based oscilloscope, model A0120001, features a maximum real-time sampling rate of up to 100 MS/s and 40 MHz bandwidth. It combines the functions of an oscilloscope, spectrum analyzer, waveform recorder, signal generator, voltmeter and cymometer. This versatile and widely-used oscilloscope has 23 measurement functions and PASS/FALL checking functions. The triggering modes include auto, normal and single and the triggering level is adjustable. The scope provides FFT spectrum analysis and four adjustable vertical modes including CH1, CH2, Dual and ADD. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. Waveforms can be saved in text, MS Word, Excel or graphic files (JPG or BMP) formats under most Windows OS up to Vista. In addition, it is compatible with USB 2.0 and requires no external power.

This easy-to-use PC-based oscilloscope belongs to GAO’s family of USB PC Based Oscilloscopes. Other models in this line include 100 MHz USB PC Based Oscilloscope, 60 MHz USB PC Based Oscilloscope and Digital Storage Oscilloscope.

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This multi-function analyzer, model A0220001, has the features of a multi-channel oscilloscope and other automatic testing instruments. It is able to identify error conditions and locate faults in the source code. It returns dynamic analysis results in binary, decimal, hexadecimal or ASCII format to facilitate debugging. The analyzer can sample up to 34 input channels and has a minimum time resolution of 2 ns. It uses advanced large-scale integrated circuits, high-frequency digital circuits, embedded systems and the other advanced technologies. The analyzer has an input voltage range of -60 to 60 V and a logic threshold range from -6 to 6 V. A software CD with demo code in VC, CVI, VB, and LABVIEW is provided with the analyzer. Inputs include TTL, LVTTL, CMOS, LVCOMS, ECL, PECL and EIA.

This easy-to-use logic analyzer belongs to GAO’s family of Logic Analyzers and Generators. Some featured products in the family are Digital RF Millivoltmeter and Frequency Counter which is an essential instrument for workshop production and laboratory ultra-high frequency voltage measurements, DDS Function /Arbitrary Generator/Counter, Digital Function Generator and Radio Frequency Signal Generator. The line of products is generally used in designing, testing, troubleshooting, and repairing electronic or electro acoustic devices.

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This handheld optical power meter, model A0850009, features a compact size, simple operation, low voltage warning, auto-off function, and real time clock function. It operates over a wavelength range of 800 to 1600 nm and provides calibrated wavelengths including 850 nm, 980 nm, 1300 nm, 1310 nm, 1550 nm and 1490 nm. This meter performs both absolute and relative power measurements within a testing range of -50 to 26 dBm. It has a large memory capacity of 200 data items for data storage and communicates with a computer via a USB interface for data exchange. This energy-saving power meter works continuously for more than 30 hours on a 3.7 V 3000 mAh rechargeable lithium battery. In addition, FC, ST, SC or LC connectors are provided for selection.

This handheld optical power meter belongs to GAO’s family of Power Meters. The line of power meters also includes fiber optic instruments such as Fiber Optic Power Meter/Light Source which performs closed-loop tests by using both optical power meter and optical light source modules. The line of products is very popular among field engineers and technicians due to their testing accuracy, functionality, portability and affordability.

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This easy-to-use USB data acquisition module, model A0K20002, has 16 analog input channels with 12 bit resolution and offers 8 TTL digital input and 8 output channels. It also has 2 analog outputs and a 32-bit event counter. This USB data acquisition module provides a maximum sampling rate of 100 kS/s and has such sampling modes as software, onboard programmable pacer or external. The module obtains all required power from the USB port, so no external power connection is ever required.

This plug and play USB data acquisition module belongs to GAO’s family of Data Acquisition Cards/Modules. The line of data acquisition cards also includes the PC104 Data Acquisition Module which allows for quick and easy parallel data acquisition and time-phase sensitive acquisition and the PCI Data Acquisition Card which is ideal for applications such as transient signal recording, refined frequency synthesis, multi-channel parallel acquisition and time-phase-sensitive acquisition.

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This 9 channel real time video multiplexer, model A0410002, features 50 fields/s in PAL mode and 60 fields/s in NTSC mode, an input of 9 loops BNC, 1.0 Vp-p 75 Ω and an output of 1 loop, 1.0 Vp-p75 Ω. For VCR, the input is 1.0 Vp-p75 Ω and the output is BNC 1.0 Vp-p75 Ω/S-VHS. It provides synchronous live, recording, display and playback capability. Alarms are generated for signal loss and motion detection. The alarm duration is programmable from 2 to 999 seconds with 4 seconds default. Video resolution is adjustable for each channel individually. This multiplexer is compatible with RS232 or RS485 interfaces. Display modes include sequence switch, single picture, PiP, 4 pictures, 8 pictures, 9 pictures, freeze-frame and zoom.

This 9 channel real time video multiplexer belongs to GAO’s family of Quad Processor & Video Multiplexer. A more advanced model of this family is GAO DM2116 which is designed to transfer recordings of signals from multiple security cameras into one. The line also includes GAO 204-01S and GAO 204-01B color video quad processors which are ideal for CCTV applications. The family is useful in video surveillance systems that have complex monitor display requirements.

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Toronto, Canada –

This smart Gigabit Ethernet converter extends the connection distance between two Gigabit Ethernet devices via fiber cable transparently without performance degradation. It complies with IEEE802.3z standard and is RoHS compliant. The data transmission rate is 2000 Mbps in full-duplex mode and 1000 Mbps in half-duplex mode. With a SFP (Mini-GBIC) connector design, the media converter not only supports existing variety of multimode and single mode fibers, but also preserves the flexibility to adapt to any changes in the fiber network. This converter allows for center chassis installation with optional power redundancy and management features for fiber optic networks. It is backward compatible with 10M, 100M and 10/100M equipment. The converter is an ideal solution for multimode, short reach up to long reach single mode fiber, Bi-Di and CWDM applications. In addition, this converter is certified FCC Part 15 Class A & CE.

This smart SFP Gigabit Ethernet converter belongs to GAO’s family of Media Converter-10/100/1000M. The family also includes another media converter 10/100/1000M Media Converter which is used in backbone network transmission and is primarily used for Gigabit Ethernet devices links. The family provides a complete solution for flexible network extensions. The family offers GAO’s customers various choices.

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This parallel data acquisition card, model PCI2712S, features high accuracy of measurement with phase consistency. It has many triggering sources including via software, manual, internal and external triggering. Four high speed ADC and four independent programmable gain amplifiers and a precise attenuation filter network are integrated into the card to achieve a voltage signal acquisition range of ±1 V or ±10 V. It offers a maximum sampling depth of up to 16 M per channel and refined sampling rate from 100 to 20 MS/s. This parallel data acquisition card uses a Field Programmable Gate Array (FPGA) facilitating high integrity, reliable signal sampling. In addition, an acquisition controller (DAQCore) is dynamically downloaded from the PCI bus interface when needed.

This parallel data acquisition card belongs to GAO’s family of PCI Data Acquisition Cards. A more advanced and higher-end model in this line is the PCI4712AS which provides a maximum A/D sampling rate of 50 Msps, and lower-end model in the family is PCI4712AS2. This family provides ideal solution for the formation of multi-channel virtual instrument systems.

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Toronto, Canada –

This easy-to-use D1 professional DVR capture card, model 18204T, features multi-playback, mobile view, disk capture, CMS functions as well as digital zoom during preview or payback. Different channels can be set to different recording times. It has 4 channels video input BNC and 4 channels audio input BNC. This professional DVR card performs redundant recording, full D1 recording and hard disk group management. Utilizing H.264 Main Profile, the card maintains a low bandwidth video compression stream while offering better image quality upon restoration than other compression schemes. The professional DVR card runs under Windows 2000, XP, Server 2003 and Vista operating systems.

This easy-to-use D1 professional DVR capture card belongs to GAO’s family of H.264 DVR Capture Cards whose video and audio can be kept entirely synchronous. GAO’s 18204TD and 18204T has 4 channels video input BNC and 4 channels audio input BNC, while 18208T and 18208TD have 8 channels video input BNC and 8 channels audio input BNC. This family of H.264 DVR Capture Card offers GAO’s customers valuable choices. The family provides a pure digital picture of the highest quality for playback, recording and video archiving.

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This smart 16 channel real time color video multiplexer, model DM2116, handles several video signals at one time and splits a monitor into various display areas. It provides synchronous display and payback capability. The multiplexer includes such alarm modes as video loss alarm, video motion alarm and external alarm. The alarm duration is programmable from 2 to 999 seconds with 4 seconds default. It is compatible with RS232 or RS485 interface and offers display modes such as sequence switch, single picture, PiP, 4 pictures, 8 pictures, 9 pictures, 13 pictures, 16 pictures, freeze-frame and zoom.

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Toronto, Canada –

This portable cable fault locator, model A0080001, offers a vast impulse width range from 30 ns to 3 μs and provides a VOP range from 50 m/μs to 300 m/μs. It also has a wide measurement range from 1 m to 6000 m with a high resolution of 20 cm and has a broad gain modulation range from 1 dB to 10 dB. This cable fault locator has a fast sampling rate of up to 500 kHz and provides both auto and manual measurement modes. Signal processing and data collection technologies enable it to accurately locate the fault distance. In auto measurement modes, it features a short dead zone test distances of less than 1 m. In manual measurement mode, the dead zone test distances are less than 15 m. The cable fault locator features simple operation, a low voltage warning, automatic power off for saving energy and automatic fault distance location without manual intervention. It provides for over 12 hours of continuous operation with its built-in rechargeable lithium battery.

This portable cable fault locator, GAO A0080001 belongs to GAO’s family of Telecom Line Testers. A more advanced and higher-end model in the family is GAO A0080002, and lower-end models in the family are GAO A0080003 and GAO A0080004. This family of test instruments offers its customers valuable choices. The line testers are very popular among field engineers as a result of their testing accuracy, functionality, portability and affordability.

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This USB PC based digital oscilloscope, model 2250, boasts a maximum real-time sampling rate of 250 MS/s using one channel and 125 MS/s using two channels. It is vertically adjustable with four modes: CH1, CH2, Dual Channel and ADD with a resolution of 8 bit/channel and provides auto, normal and single trigger modes. It also has real-time sampling and roll acquisition modes with a buffer size from 10 k to 512 k samples. This cost effective digital oscilloscope offers 23 measurement functions and PASS/FAIL checking. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. Its waveform output can be saved in text, MS Word, Excel or graphic (JPG or BMP) formats under most OS from Windows 98 to Windows Vista. Additionally, it is compatible with USB 2.0 and is fully plug and play and requires no external power. These features make it convenient to use with a notebook or handheld computer in field work.

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This handheld dual channel digital oscilloscope, model A0110007, has a sampling rate of 250 MS/s and 60 MHz bandwidth. It is able to take new measurements while the use inspects past tests. This oscilloscope can perform 20 types of automatic measurement and transform the collected analog data into a digital form after they are gathered in one of three modes: sampling, peak value detection and average value. The oscilloscope uses a USB connection for communication. Moreover, the digital oscilloscope works continuously for up to six hours on a single charge.

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This high performance 1000Base-T SFP copper transceiver, model HTSFP-24-111X, operates at a 1310 nm wavelength and offers excellent immunity to interference. It features a small form factor package, a compact RJ-45 connector assembly, a LVPECL data interface which simplifies interfacing to external circuitry and an EEPROM which is used to store detailed product information. This transceiver is composed of two sections: a transmitter section and a receiver section. The transmitter section incorporates FP and a driver IC with temperature compensation and an automatic power control circuit. The receiver section incorporates an efficient InGaAs/InP PIN photodiode and trans-impedance with AGC for wide dynamic rage. It is compliant with SFP MSA, IEEE Std. 802.3TM-2002 and FCC 47 SFR Part 15, Class B. It is also available for RoHS compliant products and is completely compliant with SONET/SDH recommendations for OC-48 specifications. In addition, the physical layer IC can be accessed via 2-wire serial bus.

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This portable USB arbitrary waveform generator and frequency counter, model A0210001, has a wide frequency range from 0.1 Hz to 5 MHz. It features light-weight, highly accurate frequency generation, high waveform resolution, high reliability, and wide software compatibility due to the implementation of DDS (Direct Digital Synthesized) technology. It generates regular waveforms such as Sine, Square, Triangle, Saw-tooth, TTL, White Noise, Gaussian Noise, Trapezoid, Exponent and AM and FM signals. Parameters such as amplitude, frequency and offset are programmable. In addition, this waveform generator and frequency counter is shipped with both SDK and API and can be easily integrated or embedded into other auto-measuring systems.

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This network video server, model TVS-21, uses an advanced operating system and new audio/video compression technology to for high quality image transmission and offers D1 format which is compatible with HALF-D1 and CIF format. This network video server utilizes an embedded server to support Web monitoring, configuration and upgrade. It allows remote view of video through a Web browser. It also provides bi-directional talk and dynamic IP addressing which enables real-time transmission of video and audio over the network. Its maximum output frame rate is 30 fps and the minimum network bandwidth occupation is 32 kbps. The server has an ODS function and an adjustable frame rate of 1 to 30 f/s according to bandwidth.

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This digital generator/counter, model 40, boasts high pulse duty ratio resolution of up to 0.001, high resolution and accuracy of digital FM and 0.1° phase adjustment resolution. It offers standard or internal storage of 27 fixed waveforms and 8 to 16000 configurable points for arbitrary waveforms. It also can store and recall 10 groups of configurations. This digital generator allows for the setting of AM modulation from 1% to 120% and the setting of start and end frequency for frequency scan output. It implements continuous phase adjustment in trig mode. Input data is conveniently input via dial or numerical keypad. Additionally, it is compatible with SCPI and fully program-controlled via RS232, GPIB, and USB interface.

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This handheld DMM/DSO, model A0120008, features fully automatic set up for volt/div and time/div DSO functions. It provides screen hold function, peak hold function, and relative measurement. The osicilloscope saves and recalls up to 100 waveforms and data. Auto, normal and single DSO trigger modes are available. It is equipped with a high contrast FSTN LCD with white LED backlight. It implements an auto-off function after an adjustable 5 to 60 minutes is powered by a polymer Li-ion battery with AC adapter. This unit operates continuously for up to 16 hours on a single charge.

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This RF spectrum analyzer, model A0070002, operates over a wide frequency range of 9 kHz to 3 GHz at a resolution of 100 Hz to 1 MHz and offers a bandwidth accuracy of 25% (1 MHz)/ 10% (<1 MHz). It features a small size and light weight. This analyzer is equipped with most advanced technologies in the industry such as locked–phase local and all-digitized medium frequency processing technologies. It stores about 200 measured data which can be downloaded to a computer through its RS232 interface. It conforms to third-level equipment standard in GJB3947–2000. The radio frequency spectrum analyzer is equipped with a 6-inch VGA TFT color LCD screen providing clear signal detail. In addition, its large capacity rechargeable lithium battery ensures a long operating time.

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This handheld digital signal level meter, model 1129D, operates over a frequency range of 5 to 870 MHz. It is packed with multiple functions such as single and multi-channel testing, all-band scanning, difference-carrying measurement, automatic channel power measurement, MER  (modulation error ratio) measurement, BER (bit error rate) measurement and signal-to-noise ratio (SNR, S/N) measurement. This digital signal level meter offers a bandwidth of 0.28 to 9.99 MHz and a signal level measurement range of 30 to 120 dBμV at a precision level of ±1.5 dB. It is able to analyze QAM 32 64 128/ITU-TJ.83 Annex A/B/C modulated signals and provides a spectrum analysis span of 6.25, 12.5, 25 and 62.5 MHz. PC toolbox software and constellation diagram display are provided. It communicates via an RS232 interface or a USB port for data exchange.

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This compact universal programmer, model B0M70001, offers a 48-pin ZIF socket with universal drivers and features test vector capability and a multi-array fuse map editor. It automatically identifies the manufacturer and type of EPROM and also identifies TTL/CMOS logic IC device insertion. It starts programming automatically upon detection of chip insertion in auto-run mode. The programmer accepts standard file formats including JEDEC, INTEL (Extended) HEX, HOLTEK, EMC (CDS) and INTEL HEX16. Universal DIP, PLCC, QFR, TSOP, PSOP, SOIC, SSOP and SDIP adapters are available for this high performance programmer. It offers eight languages including English, Chinese (Simplified), Chinese (Traditional), Korean, Poland, Italian, Portuguese and Dutch. In addition, this programmer connects to a computer via a USB port and manages the 16 bit and 32 bit word split under Windows XP/2000/NT/Vista operating systems.

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This handheld versatile CCTV tester, model 101, combines a CCTV video tester, PTZ camera controller, UTP cable tester, video test pattern generator and PTZ protocol analyzer in a single compact package. It identifies NTSC and PAL video modes. It provides easy menu operation and uses RS232, RS422 simplex, and RS485 interfaces for data exchange. This low power tester is compatible with more than twenty kinds of PTZ controller protocols such as PELCO-P, PELCO-D, Samsung, Panasonic and Molynx. This easy-to-use portable CCTV tester performs well even under harsh environments.

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Toronto, Canada – GAO Tek Inc.

The synthesized signal generator, model A0230004, boasts 4 abundant modulation functions including amplitude modulation, frequency modulation, phase modulation and pulse modulation. It features high accuracy, spectral purity, wide frequency coverage, a built-in modulation signal generator and GPIB remote control function. On UHF receivers, the generator is able to measure selectivity, sensitivity, inter-nodulation distortion, AM rejection, AGC response, audio hum, noise and distortion and STAND ratio. Moreover, its step sweep and list sweep provide flexible digital sweep functions which provide fine control over output frequency and power.

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This easy-to-use CATV signal level meter, model 1151B, operates over a broad frequency band of 46 to 870 MHz or 5to 870 MHz. It features FCC standard limit testing, transmission and reflection characteristic testing and automatic timing measurement. The peak-hold level measurement function in both LEVEL and SPECTRUM modes makes it possible to detect the occasional fluctuation. It is powered by a battery providing a maximum operating time of 8 h when fully charged. This meter offers an interface to communicate with a computer or printer.

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Toronto, Canada – GAO Tek Inc.

This easy-to-use ADSL 2+ tester, model A0010003, operates under the Windows™ CE platform allowing Web site browsing directly. It offers auto-off functions for energy-saving and various voice alarms and LED indicators. It is equipped with a large storage volume, and test results can be uploaded, saved and printed through the embedded software which is upgradable via an integrated Ethernet or USB interface to ensure the value of your investment. It has a maximum transmission distance of 6.5 km and carries out measurements immediately with a simple push of the “Auto Test” key. This rugged tester has a jacket protector and can be carried on a lanyard. It also has a bracket stand for easy use.

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This handheld Gigabit Ethernet tester, model A0060001, identifies cable faults such as short circuits, open circuits and cable length. It provides dual electrical ports and optical ports and its test set includes port positioning, packet capture and loopback. The tester also has single and multi-station traffic generators and provides traffic filtration statistics at the receiver end. It boasts a large memory for the storage of settings and results. Equipped with a 4.3 in LCD color touch screen and smart navigation menus, this tester shows all test results graphically and numerically. The tester is compliant with IEEE802.3, RFC1242 and RFC2544 standards and can be upgraded on-line. In addition, it is able to connect with a computer via an external USB or Ethernet port for data exchange.

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This powerful cable fault locator, model 6130, utilizes Time Domain Reflection (TDR) technology and has a double cursor display to analyze test results. It tests cables of 25, 50, 75 and 100 ohms impedance within a long measurement range of 15 to 2000 m. This cable fault locator also provides an intuitive electronic map relevant to the time domain picture allowing the fault to be detected easily. In addition, it can be connected to a computer for file upload and data analysis.

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T

This real time digital video recorder, model 420001, records images with three adjustable levels which are high, middle and low. The recorder’s recording resolution is 352 × 240 (CIF) or 704 × 288 (Half D1) in PAL mode and 352 × 288 (CIF) or 704 × 240 (Half D1) in NTSC mode. For video recording, it features 4 channel inputs (BNC) and 2 channel outputs (1BNC and 1S-video) as well as video search by event, time and channel. In regard to audio recording, it is characterized by 4 channel synchronous inputs and 1 channel synchronous output. The digital video recorder supports 100f/s/4ch (PAL) and 120f/s/4ch (NTSC) frame display rate and also conducts one channel or four channel synchronous playback.

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Toronto, Canada – GAO Tek Inc.

This powerful signal level analyzer, model 8385, tests CATV signal levels in both channel (SCAN) and frequency (SPECTURM) modes. In “SCAN” mode, it scans all channels and records signal levels in internal memory for later analysis. In “SPECTRUM” mode, the analyzer displays spectrum tests within a frequency range of 5 MHz to 870 MHz. The handheld analyzer stores twenty-four groups of scanned data (up to 100 channels per group) and offers two RF F-Type input ports. The simple operation and light weight design together with a high resolution LCD screen makes it ideal for field use.

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Toronto

This easy-to-use super signal level meter, model 1151B, operates over a broad frequency band of 46 to 870 MHz or 5 to 870 MHz. It features FCC standard limit testing, transmission and reflection characteristic testing and automatic timing measurements. The peak-hold level measurement function in both LEVEL and SPECTRUM modes makes it possible to detect the occasional fluctuation. It is powered by a battery with an intelligent quick charging function providing a maximum operating time of 8 h when fully charged. This meter offers an interface to communicate with a computer or printer.

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Toronto, Canada – GAO Tek Inc.

This digital function generator, model 8219A, operates at the frequency range of 0.3 Hz to 3 MHz or 0.5 Hz to 5 MHz. Waveforms includes Sine, Triangle, Square, Ramp, TTL and COMS output. It boasts external voltage controlled frequency (VCF) function, duty cycle control with signal inversion capacity, two-step and variable attenuator and a built-in 6 digit counter with INT/EXT function up to 100 MHz. The function generator features variable DC offset control, high resolution, INT/EXT AM/FM modulation, LIN/LOG sweep mode and GCV output for synchronization.

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Toronto, Canada – GAO Tek Inc.

This portable fiber optical visual fault locator, model 5102, features low voltage warning, stable output power and supports both CW and pulse operating modes. The 650nm visible fault locator complies with CE standards including EMC, EMI and ROHS. It is drop and dust resistance and has a laser case ground design which prevents ESD damage. The rugged fault locator is shipped with a FP-LD emitter and a 2.5 mm universal connector. If 1.25 mm connectors are required, an FC (male)-LC (female) convertor can be provided upon request. With two AA alkaline batteries, the fiber optical visual locator can work continuously for up to 60h.

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This easy-to-use DVR card, model 18004TD, utilizes a high performance audio/video compression chip to produce 8 channels of CIF and 2 channels of D1 compressed signals. It also offers a digital zoom function during preview or playback. With this professional DVR card embedded into existing system, a pure digital picture of the highest quality for playback, recording and video archiving can be achieved. This DVR card uses digital watermark technology to ensure that a video file is not falsified. In addition, its H.264 Main Profile enables the card to maintain a low bandwidth video compression stream and offers better image quality upon restoration than other compression schemes.

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Toronto, Canada

This portable ADSL2+ tester, model A0010002, functions as an ADSL modem to simulate computer logon and verify the operation performance of the terminal equipment. It also verifies connectivity from user to ISP and conducts network layer tests after dial-up, including Ping, Ipconfig, Route and Tracert. This tester’s multi-tasks function allows the ADSL2+ tester to conduct new tests while the operator reviews previous test results. It stores up to seven test settings and one thousand test results making set-up and testing fast and efficient. Test results can be uploaded, saved and printed through the included software which is upgradeable via an RS-232 interface. Additionally, it boasts a LCD screen with touch panel, simple operation allowing Web browsing and auto power-off.

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This high performance oscilloscope, model 2150, can be connected to any PC with an included USB cable for both data transfer and power charge and requires no additional power supply. It integrates the functions of an oscilloscope, spectrum analyzer, voltmeter, logic analyzer and frequency meter all within this single unit. The versatile oscilloscope has a maximum real-time sampling rate of 150Ms/s at 60MHz bandwidth. It saves waveform in many formats including text file, jpg/bmp graphic file and MS excel and word file. This USB PC based oscilloscope runs under Windows 98, Windows Me, Windows NT, Windows 2000, Windows XP and Windows VISTA operating systems.

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This high performance graphic multimeter, model 6102, features full auto set up for volt/div and time/div for its digital sampling oscilloscope (DSO). It provides DSO auto measurement and DSO cursor readout. Auto, normal and single DSO trigger modes are available. The multimeter performs DMM functions including measurements of AC/DC voltage and current, resistance, capacitance, frequency, duty cycle, power output, and diode and continuity check. The real time sampling rate is up to 4 Mbps. The graphic multimeter saves and recalls up to 100 waveforms and data. In addition, this graphic multimeter has an auto power off function which can be set for 5 to 60 minutes of inactivity. The unit operates continuously for up to 16 hours on a single charge.

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This easy-to-use oscilloscope, model 2090, features a maximum real-time sampling rate of 100 MS/s and 40MHz bandwidth. It has 23 measurement functions and PASS/FALL checking functions. The versatile digital oscilloscope combines the functions of an oscilloscope, spectrum analyzer, waveform recorder, signal generator, cymometer, and voltmeter. It provides three triggering modes: auto, normal and single. The scope also provides four adjustable vertical modes including CH1, CH2, Dual and ADD. It displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. The waveform output can be saved in text, MS Word, Excel or graphic (JPG or BMP) formats under most Windows OS up to Vista.

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This portable digital insulation tester, model A0070004, features double insulation protection and an automatic power-off function. It performs insulation resistance measurements, continuity measurements, AC/DC voltage and frequency measurements. This portable tester boasts a broad range of insulation resistance and performs a polarity shift of automatic voltage testing. It offers 50, 100, 250, 500, or 1000 V output voltage to meet different requirements. It provides a 7 mA continuity function which is useful for inductive line testing. In addition, the test data can be downloaded to a computer via an RS232 interface.

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This network video server, model TVS-21, uses an advanced operating system and new audio/video compression technology to for high quality image transmission and offers D1 format which is compatible with HALF-D1 and CIF format. This network video server utilizes an embedded server to support Web monitoring, configuration and upgrade. It allows remote view of video through a Web browser. It also provides bi-directional talk and dynamic IP addressing which enables real-time transmission of video and audio over the network. Its maximum output frame rate is 30 fps and the minimum network bandwidth occupation is 32 kbps. The server has an ODS function and an adjustable frame rate of 1 to 30 f/s according to bandwidth.

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The digital RF millivoltmeter and frequency counter, model 2281, works over a wide frequency range of 9 kHz to 3000 MHz. It is packed with outstanding features including rapid frequency response, a small standing wave coefficient, high sensitivity, accuracy, reliability and high price-to-quality ratio. Additionally, it can also work in conjunction with a computer to form an automated test system.

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This portable optical power meter, model 4E, features automatic frequency range switching, automatic reset and shutdown, self-calibration, low battery indication, automatic frequency identification function and high measurement accuracy. The meter uploads data via RS232 interface. This optical power meter offers a switchable working wavelength range from 850nm to 1700 nm together with optional modulation frequencies including 270 Hz, 1 kHz and 2 kHz to meet various requirements. The meter has memory capacity to store 1000 groups of data items and offers FC, ST and SC connectors for selection.

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The logic analyzer, model 5034, identifies error conditions and locates faults in the source code. Its intuitive and flexible display returns dynamic analysis results in binary, decimal, hexadecimal or ASCII format to facilitate debugging. The advanced logic analyzer includes a software CD with demo code in VC, CVI, VB, and LABVIEW. It also has a minimum time resolution of 2 ns, an input voltage range of -60 V to 60 V and a logic threshold range from -6 V to 6 V. It runs under Windows 2000 to Vista. Additionally, supported inputs include TTL, LVTTL, CMOS, LVCOMS, ECL, PECL and EIA.

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This telephone cable fault locator, model 98, features a large backlit LCD screen, low voltage warning and an automatic power off design. It performs measurement at a distance of up to 15 km with a dead zone test distance of less than 1 m. The fault locator offers wave shape comparison and a visual fault locator for quick and easy troubleshooting. The fault test types include grounding, immersion and bad insulation.

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This multi-functional CATV analyzer, model1285B, operates at a frequency range of 5 MHz to 870 MHz and features digital TV (QAM) power analysis and spectrum analysis. It is designed with high immunity to interference for enhanced TV image quality. It can be easily connected to a computer or a printer to save or print test data reports via data port. The meter has a powerful spectrum analysis function makes network system testing easy and efficient. Other functions include QAM power analysis, tilt testing, limit testing, trunk voltage testing and auto test.

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This high-performance mini-OTDR, model 6413, features a 1.6 m short event dead zone, 0.1 m sample resolution with 65 k sampling points, pulse widths ranging from 10 ns to 20,480 ns and a high dynamic range of 42 dB to 40 dB. It reads and writes files in Bellcore GR196 file format and offers a long identification range from 1.6 to 512 km. This small and rugged OTDR communicates with a computer through USB, serial or parallel interface. FC or UPC connectors are provided for selection. In addition, it has a large color LCD and also features ample memory for data storage.

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This real time digital video recorder, model 7004, features both video and audio recording. It offers 4 channel video inputs (BNC) and 2 channel video outputs (1BNC and 1S-video), 4 channel synchronous audio input and 1 channel synchronous audio output. The digital video recorder is compatible with 100f/s/4ch (PAL) and 120f/s/4ch (NTSC) frame display rate. The DVR provides various record modes for selection such as manual, alarm, motion detection and scheduled each with 3 adjustable image quality levels.

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This professional DVR card, model 18004TD, utilizes a high performance audio/video compression chip to produce 8 channels of CIF and 2 channels of D1 compressed signals. It also offers a digital zoom function during preview or playback. This DVR card maintains a low bandwidth video compression stream while offering better image quality upon restoration than other compression schemes by using H.264 Main Profile. This DVR card provides 4 channels video input and 4 channels audio input. It runs under Windows 2000, XP, Server 2003 and Vista operating systems.

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This easy-to-use optical light source, model 5202, provides a highly stable output power using PF-LD emitters. It provides stable output wavelengths including 650nm red source, 1310/1550nm for single mode fiber and 850/1300nm for multimode fiber. The compact light source modulation frequencies include CW, 270Hz, 1kHz and 2kHz. In addition, it can be used in conjunction with other types of test equipment such as power meters and fiber identifiers to test fiber optic cables.

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This QAM analysis meter, model 1185Q, operates over a wide frequency band of 5 to 870MHz with a resolution of 10kHz. This meter conducts return path testing and provides voltmeter functions, spectrum analysis; auto testing, analog TV measurement and DVB power measurements including QAM, QPSK and COFDM. It boasts intelligent power management, fast setup and alphanumeric input and allows for easy transfer of test data to a computer or printer through serial interface. In addition, this meter complies with DVB–C and ITU–T J.83 Annex a standards.

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This optical time-domain reflectometer, model 6416, features a short event dead zone of 1.6m, a high resolution of 0.25m, 65535 sampling points and a long operating time of more than 10 hours on a single charge. It offers a maximum distance range of 256km and a memory capacity of 800 traces. This rugged OTDR offers optional wavelengths including 1310, 1550, 1625 and 1490nm at an accuracy of ±20nm. It provides dual USB interfaces supporting both USB stick and direct cable download to a computer via included software. In addition, the compact OTDR supports Bellcore GR196 file format for file management.

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This parallel data acquisition card, model PCI2712S, has many triggering sources, including software (manual), internal and external triggering. Four high speed ADC and four independent programmable gain amplifiers and a precise attenuation filter are integrated into the card to achieve a voltage signal acquisition range of ±1V or ±10V. Maximum sampling rate of A/D is up to 20Msps and maximum sampling depth of each channel can is 16Msa. This parallel data acquisition card uses a Field Programmable Gate Array (FPGA) for high integrity and reliable data acquisition. In addition, the acquisition controller (DAQCore) is dynamically downloaded from the PCI bus interface when needed. The acquisition card is capable of remote upgrade.

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This handheld CATV analyzer, model 783A, operates over a wide frequency range of 5MHz to 870MHz. It features arbitrary waveform power detection of forward and backward system modulation signals, wide dynamic spectrum analysis reflecting the spectrum condition of the signal, full-auto simulation and digital channel search and creation. Both auto measurement and slope measurement modes are available. It automatically obtains parameters including total number of channels, channel type (analog or digital), and channel spectrum in its auto-measurement mode. This rugged analyzer is equipped with a high-contrast, backlit LCD screen and incorporates a high interference immunity design to ensure that TV images are displayed at the best graphic quality. In addition, this shock-resistant analyzer offers protection against harsh environments and is able to operate continuously for more than 16 hours on a single charge.

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This handheld gigabit Ethernet tester, model 5850, features a power outage function and auto power save function and provides test tools including port positioning, packet capture and loopback. It is compliant with IEEE802.3, RFC1242 and RFC2544 standards. The tester has a cable VCT which is capable of identifying short circuits, open circuits and cable length. It offers dual electrical ports and optical ports and has a large memory for the storage of settings and results. The tester has single and multi stations traffic generator and supports traffic filtration statistic at the receiver end. Equipped with a 4.3in LCD color touch screen and smart navigation menus, this tester shows all test results graphically and numerically. This tester can be upgraded on-line and is able to connect with a computer via an external USB port or an Ethernet port for data exchange. In addition, the tester runs under Windows 2000/XP operating systems.

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This portable optical power meter, model 5303, offers a high resolution LCD screen and a quick response time without requiring warm-up. It features a compact design, wide range of power measurements, high accuracy test results and an automatic self calibration function. It iss dust and water resistant. This handheld power meter conserves energy via its auto-off function, which kicks in after ten minutes of inactivity. The optimized device offers more than 240 hours continual operation time with three dry cells. Its moveable connector provides for several types of connections including FC, SC and ST. Moreover, this well-designed optical power meter displays optical power in mw, dB and dBm and provides calibrated wavelengths including 850, 1300, 1310, 1550, 1490, and 1625nm.

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This portable USB PC based oscilloscope, model2250, features a maximum real-time sampling rate of 250MS/s and 100MHz bandwidth. It offers 23 measurement functions and PASS/FAIL checking .It is vertically adjustable with four modes: CH1, CH2, Dual Channel and ADD with a resolution of 8bit and has auto, normal and single trigger modes. The versatile digital oscilloscope displays waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division and X-Y plot. Its waveform output can be saved in text, MS Word, Excel or graphic (JPG or BMP) formats under most Windows operating systems from 98 to Vista. In addition, it is compatible with USB 2.0 and requires no external power making it convenient to use with a notebook computer.

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This easy-to-use analyzer, model801, features a compact size, a large TFT LCD touch screen and high reliability. It is an ideal solution for the installation and troubleshooting of E1, DS3, STM-1/OC-3, STM-4/OC-12 and STM-16.OC-48 lines. It supports bit error rate testing and indicates a variety of errors in SDH and PDH systems. This analyzer conducts performance analysis according to international standards such as G.821, G.826, G.828, G.829, M.2100 and M.2101. It tests jitter signals at a maximum test rate of 2048kbit/s. It also conducts such functions as frequency testing, APS measurement, round trip delay measurement and E1 pulse Mask analysis. In addition, this analyzer offers firmware upgrades via USB, RJ45 or RS232 interface.

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This 1000Base-T SFP copper transceiver, model HTSFP-24-111X, features low power consumption, operates at the wavelength of 1310nm and offers excellent immunity to interference. It is composed of two sections: a transmitter section and a receiver section. The transmitter section incorporates FP and a driver IC with temperature compensation and an automatic power control circuit. The receiver section incorporates an efficient InGaAs/InP PIN photodiode and trans-impedance with AGC for wide dynamic rage. This transceiver has a small form factor package, a compact RJ-45 connector assembly, a LVPECL data interface which simplifies interfacing to external circuitry and an EEPROM which is used to store detailed product information. In addition, the physical layer IC can be accessed via 2-wire serial bus.

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This upgraded universal programmer, model VP380, includes a 48-pin ZIF socket that can be used for 8-pin to 48-pin DIP package devices. It features a high programming speed, test vector capability, multi-array fuse map editor, device insertion detection and poor-pin-contact check. This optimized universal programmer automatically identifies the manufacturer and type of EPROMs and TTL/CMOS logic IC and tests TTL/CMOS logic ICs and dynamic/static random access memory devices. In auto-run mode, it starts programming automatically upon detection of chip insertion. In addition, this universal programmer accepts input from most compilers in JEDEC format including ABEL, CUPL, PALASM, TANGO PLD, or CAD PLD, PLD Designer and ISDATA.

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This high performance logic analyzer, model 5034, has a large memory capacity and offers a variety of trigger modes, a Burr detection function, and a variety of digital information capture function. This analyzer is able to issue error messages and locate faults in the source code. It has delay function to capture data around the waveforms, both before and after the required observation points. This logic analyzer has a sufficient number of input channels and is capable of simultaneously observing multi-channels of data flow information or control information and capture narrow pulse interferences information. It has intuitive and flexible viewing screen to facilitate dynamic analysis. The data can be displayed as binary, decimal, or hexadecimal or ASCII format to facilitate debugging. In addition, this analyzer runs under Windows 2000, XP and Vista operating systems.

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Toronto, Canada – GAO Tek Inc.

This color video quad processor, model 204-01B, supports multiple video display modes including sequence switch, single picture, quad picture, PiP, freeze-frame and zoom. And it also has various alarm modes including video loss alarm, video motion alarm, external alarm and moving detection alarm. It detects motion in up to 48 areas and has 256 levels of sensitivity. The alarm duration is adjustable from 1s to 30s. This color video quad processor exchanges data via a RS232 or RS485 interface. It is equipped with single video mode and displays data, time and picture on its screen automatically. In addition, the video quad processor also performs duplex operation with VCR playback.

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This handheld E1/Datacom transmission analyzer, model5859, supports dual E1 channel testing, round trip delay measurement, pulse mask measurement; APS delay measurement, frequency and offset measurements, level measurement and manual or auto-timer measurements. This easy-to-use analyzer functions as an E1 tester, Datacom tester and G.703 CO and drop & insert tester. It provides full-featured measurements for errors, alarms, signaling, tone and timeslot data and helps to verify quality-of-service in your networks via easy-to-download test options. Test results can be uploaded, conserved and printed through included software via USB interface to a computer. This analyzer can save up to 10 user-defined configurations and 10 groups of results. It is powered by built-in Li-ion rechargeable battery providing 4 hours continuous operation and has an AC power supply as well.. In addition, it boasts a large, high-resolution, contrast-adjustable, backlit LCD with a smart navigation mode. Its portable design, simple operation and multifunctional features make it an invaluable tool for field testing.

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This handheld graphic multimeter, model 6102, features fully auto set up for volt/div and time/div of DSO. Auto, normal and single DSO trigger modes are available. It offers DSO cursor readout and DSO auto measurements including Vpp, Vavg, Vrms and dBm. It also provides a 4Mbps real time sampling rate. The graphic multimeter saves and recalls up to 100 waveforms and data and has a high definition backlit FSTN LCD screen. It has an auto power off function which kicks in 5 to 60 minutes of inactivity. The multimeter can work continuously for up to 16 hours on a charge.

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This lightweight OTDR, model 6413, reads and writes files in Bellcore GR196 file format and offers a long identification range from 1.6km to 512km. It features 1.6m short event dead zone, 0.1m sample resolution with 65k sampling points, pulse widths ranging from 10ns to 20,480ns and a high dynamic range of 42dB to 40dB which ensures accurate signal processing. The rugged OTDR provides a USB interface for data transmission and also transmits data to a PC via a serial or parallel interface. FC and UPC connectors are provided for selection. The high performance OTDR works continuously for eight hours when it is fully charged; battery levels are displayed accordingly.

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This radio frequency spectrum analyzer, model 4022, stores about 200 measured data which can be downloaded to a computer through its RS232 interface. It has a bandwidth accuracy of 25% (1MHz) / 10% (<1MHz). The radio frequency spectrum analyzer is equipped with a 6-inch VGA TFT color LCD screen providing clear signal detail and features a small size and light weight. It is compliant with third-level equipment standard in GJB3947–2000. A large capacity rechargeable lithium battery ensures a long operating time.

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This handheld digital signal level meter, model 1129D, operates at a frequency range of 5MHz to 870MHz and offers signal level measurement range of 30dBμV to 120dBμV at a precision level of ±1.5dB. It features a durable and portable design, easy keypad operation, high accuracy and quick response time. This portable digital signal level meter allows direct entry into a channel or frequency tuning selection and offers great flexibility in head-ends and distribution networks that employ narrow digital signals or non-standard frequency applications. It is able to connect with a computer via a RS232 interface or a USB port for data exchange.

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This Ethernet tester, model XG5050, identifies short circuits, open circuits and fiber optic cable length. It features a 4.3in color LCD with touch panel, smart navigation menus. The handheld tester provides test tools including port positioning, packet capture and loop back. It supports 128 sites full line rate 10/100/1000Mbps traffic transmission. This portable gigabit Ethernet tester has a large capacity memory for storage of settings and results. The firmware can be upgraded on-line. Test results can be shown as text or graphically. The meter ships with included jacket cover, tie-in protection, lanyard and stand for hands free viewing.

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This easy-to-use ADSL/ADSL2+ tester, model 5856, features auto-off function, various alarm and LED indicators and histogram analysis. By simply plugging the ADSL / ADSL2+ connections into the tester, test results and line parameter measurement are obtained with one push of the “Auto Test” key. Test results can be uploaded, saved and printed through the included software which is upgradeable via an integrated RS-232 interface; while the embedded chipset is upgradeable via Ethernet interface in order to remain current with any developments in the ADSL standard and protect your investment. This portable tester has a maximum transmission distance of 6.5km. Given its compact size, handheld design and ease of use, this ADSL/ADSL2+ tester is an excellent tool for technicians for field work.

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This high performance oscilloscope, model 2150, can be connected to any PC with an included USB cable for both data transfer and power charge and requires no additional power supply. It integrates the functions of an oscilloscope, spectrum analyzer, voltmeter, logic analyzer and frequency meter all within this single unit. The oscilloscope has a maximum real-time sampling rate of 150Ms/s at 60MHz bandwidth. It saves waveform in many formats including text file, jpg/bmp graphic file and MS excel and word file. This USB PC based oscilloscope runs under Windows 98/ NT/2000/XP and Vista operating systems.

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Toronto, Canada – GAO Tek Inc.

The compact ADSL2+ tester, model 332B, has automatic test data refreshment, PPPoE dial-up via internal modem, modification of PAP/CHAP, PPPoE user name and password, and modem emulation capabilities. It offers a data memory capacity of 99 groups of test results and uses LED voltage indicators to indicate line faults such as a break or short. This ADSL2+ tester provides two modem modes for selection: ADSL2+ auto mode and multi mode.

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The powerful cable fault locator, model 6130, analyzes the status of the cable with its advanced analysis software. It tests cables of 25, 50, 75ohm and 100Ohm impedance at a long measurement range from 15m to 2000m. This portable cable fault locator provides an intuitive electronic map relevant to time domain picture so that faults can be detected easily. In additional, it can be connected to a PC for file upload and data analysis.

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This super signal level meter, model 1151B, operates within a broad frequency range of 46MHz to 870MHz or 5MHz to 870MHz. It is able to conduct FCC standard limit testing and transmission and reflection characteristic testing. It also verifies proper signal level of any channel. The peak-hold level measurement function in both LEVEL and SPECTRUM modes makes it possible to detect the occasional fluctuation efficiently. This meter offers an interface to communicate with a computer or printer. It is powered by a battery with a fast charging function providing a maximum operating time of 8h at a full charge. All of these capabilities make the signal level meter an ideal tool for signal level measurement and spectrum analysis.

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This real-time DVB spectrum analyzer, model 8821, operates at a frequency range of 1MHz to 1000MHz. It conducts TV channel measurement and other key parameters in auto testing such as CSO/CTB, C/N, MOD, LEVEL, audio test, cross-modulation, differential phase/gain, and chrominance-to-luminance delay inequality. The DVB spectrum analyzer has digital signal analysis function and supports constellation diagrams for 16/32/64/128/256QAM/QPSK modulation types and provides other key parameters in digital signal measurement such as MER, EVM and pre/post BER to meet different requirements. This spectrum analyzer fully complies with ITU-T J.83 Annex A/B/C standard. Moreover, this DVB spectrum analyzer offers two windows for scanning the spectrum.

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This compact high-performance UHF Gen 2 RFID tag, model 115011, features excellent price-to-performance ratio and balanced performance on, off, or near metals and liquids by using breakthrough technology. It is supplied as a label or optional ruggedized case. The robust passive RFID tag has a read range of more than 1.5 meters and achieves a fast reading speed at a reliable reading rate of over 99.99%.

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Toronto, Canada – GAO Tek Inc.

This highly sensitive communication cable fault tester, model 8B, is resistant to cold and pressure due to its ruggedly manufactured case. Its intelligent switch-mode power supply and battery charger protects against such conditions as over-voltage, over-current, short-circuit and reverse connection of power supply. The backlit LCD screen is capable of clearly displaying six resistance values between the A, B paired lines and the connection line. Moreover, the tester is able to operate continuously up to 20 hours  with an internal LG 2Ah Lithium battery.

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This real time digital video recorder, model 7004, records images with three adjustable levels which are high, middle and low. The recorder’s recording resolution is 352 × 240 (CIF) or 704 × 288 (Half D1) in PAL mode and 352 × 288 (CIF) or 704 × 240 (Half D1) in NTSC mode. For video recording, it features 4 channel inputs (BNC) and 2 channel outputs (1BNC and 1S-video) as well as video search by event, time and channel. In regard to audio recording, it is characterized by 4 channel synchronous inputs and 1 channel synchronous output. The digital video recorder supports 100f/s/4ch (PAL) and 120f/s/4ch (NTSC) frame display rate and also conducts one channel or four channel synchronous playback.

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sales@gaotek.com

Toronto, Canada – GAO Tek Inc.

GAO Tek Inc.’s professional DVR card, model 18016T, uses a high performance audio/video compression chip to produce 8 channels of CIF and 2 channels of D1 compressed signals. Different channels can be set to different recording times. The user-friendly DVR card utilizes digital watermark technology to ensure that a video file is not falsified. Its H.264 Main Profile enables the card to maintain a low bandwidth video compression stream while offering better image quality upon restoration than other compression schemes. This DVR card has digital zoom in preview and playback modes.

For sales inquiries please contact:

1-877 585-9555 ext. 601 – Toll Free (USA & Canada)

1-416 292-0038 ext. 601 – All Other Areas

sales@gaotek.com

Toronto, Canada –

GAO Tek Inc.’s PCM channel analyzer, model 2038, features touch operation, key-stroke operation, expanded mouse operation, flexible control modes and a convenient Windows’ style GUI. It supports equal step sequence of frequency spots or customized spots where the number of spots is selectable. This easy-to-use analyzer measures return loss, longitudinal conversion loss and longitudinal conversion transfer loss and provides a storage capacity of up to 100 groups. It compares the measured results with built-in standard ITU-T tolerance masks and evaluates whether the results passed or failed. Test results can be uploaded to a PC where they can be further viewed, analyzed, assembled, filed and printed via included Test Manager Pro software; the embedded software is upgradable online. Using remote control via USB or Ethernet interface, users can develop and design voice channel measurement/control systems under various conditions.

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